All Implemented Interfaces:

Cloneable, Map<Object,Object>
```
public class Hints
extends RenderingHints
```
A set of hints providing control on factories to be used. Those hints are typically used by renderers or grid coverage processors for example. They provides a way to control low-level details. Example:
```
 CoordinateOperationFactory myFactory = &hellip
 Hints hints = new Hints(Hints.COORDINATE_OPERATION_FACTORY, myFactory);
 AbstractProcessor processor = new DefaultProcessor(hints);
 
```
Any hint mentioned by this class is considered to be API, failure to make use of a hint by a GeoTools factory implementation is considered a bug (as it will prevent the use of this library for application specific tasks).
When hints are used in conjunction with the factory service discovery mechanism we have the complete geotools plugin system. By using hints to allow application code to effect service discovery we allow client code to retarget the geotools library for their needs.
Since:

2.1

Author:

Martin Desruisseaux, Jody Garnett

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`Hints.ClassKey`	A key for value that may be specified either as instance of `T`, or as `Class<T>`.
`static class`	`Hints.ConfigurationMetadataKey`	Keys for extra configuration options that are passed from the overhead application into queries.
`static class`	`Hints.DoubleKey`	A hint used to capture a configuration setting as double.
`static class`	`Hints.FileKey`	Key for hints to be specified as a `File`.
`static class`	`Hints.IntegerKey`	A hint used to capture a configuration setting as an integer.
`static class`	`Hints.Key`	The type for keys used to control various aspects of the factory creation.
`static class`	`Hints.OptionKey`	Key that allows the choice of several options.

Nested classes/interfaces inherited from interface Map
Map.Entry<K extends Object,V extends Object>

Field Summary

Fields
Modifier and Type	Field	Description
`static Hints.Key`	`ASSOCIATION_PROPERTY`	The name of a property to traverse in a datastore query.
`static Hints.Key`	`ASSOCIATION_TRAVERSAL_DEPTH`	The maximum number of associations traversed in a datastore query.
`static Hints.ClassKey`	`ATTRIBUTE_TYPE_FACTORY`	The `org.geotools.feature.AttributeTypeFactory` instance to use.
`static Hints.IntegerKey`	`AUTHORITY_MAX_ACTIVE`	The maximum number of active authority factories.
`static Hints.IntegerKey`	`AUTHORITY_MAX_IDLE`	The number of idle AuthorityFactories.
`static Hints.IntegerKey`	`AUTHORITY_MIN_EVICT_IDLETIME`	When the evictor is run, if more time (in milliseconds) than the value in `AUTHORITY_MIN_EVICT_IDLETIME` has passed, then the worker is destroyed.
`static Hints.IntegerKey`	`AUTHORITY_MIN_IDLE`	Minimum number of objects required before the evictor will begin removing objects.
`static Hints.IntegerKey`	`AUTHORITY_SOFTMIN_EVICT_IDLETIME`	When the evictor is run, workers which have been idle for more than this value will be destroyed if and only if the number of idle workers exceeds AUTHORITY_MIN_IDLE.
`static Hints.IntegerKey`	`AUTHORITY_TIME_BETWEEN_EVICTION_RUNS`	Time in milliseconds to wait between eviction runs.
`static Hints.IntegerKey`	`CACHE_LIMIT`	The recommended maximum number of referencing objects to hold in a authority factory.
`static Hints.OptionKey`	`CACHE_POLICY`	Policy to use for caching referencing objects.
`static Hints.OptionKey`	`COLOR_DEFINITION`	The color definition to use when converting from String to Color.
`static Hints.DoubleKey`	`COMPARISON_TOLERANCE`	Tolerance used in comparisons between floating point values.
`static Hints.Key`	`COORDINATE_DIMENSION`	The actual coordinate dimensions of the geometry (to be used in the GeometryDescriptor user map)
`static Hints.ClassKey`	`COORDINATE_OPERATION_AUTHORITY_FACTORY`	The `CoordinateOperationAuthorityFactory` instance to use.
`static Hints.ClassKey`	`COORDINATE_OPERATION_FACTORY`	The `CoordinateOperationFactory` instance to use.
`static Hints.Key`	`CRS`	The `CoordinateReferenceSystem` to use in ISO geometry factories.
`static Hints.FileKey`	`CRS_AUTHORITY_EXTRA_DIRECTORY`	Used to direct WKT CRS Authority to a directory containing extra definitions.
`static Hints.ClassKey`	`CRS_AUTHORITY_FACTORY`	The `CRSAuthorityFactory` instance to use.
`static Hints.ClassKey`	`CRS_FACTORY`	The `CRSFactory` instance to use.
`static Hints.ClassKey`	`CS_AUTHORITY_FACTORY`	The `CSAuthorityFactory` instance to use.
`static Hints.ClassKey`	`CS_FACTORY`	The `CSFactory` instance to use.
`static Hints.Key`	`DATE_TIME_FORMAT_HANDLING`	Controls date time formatting output for GML 2.
`static Hints.ClassKey`	`DATUM_AUTHORITY_FACTORY`	The `DatumAuthorityFactory` instance to use.
`static Hints.ClassKey`	`DATUM_FACTORY`	The `DatumFactory` instance to use.
`static Hints.OptionKey`	`DATUM_SHIFT_METHOD`	The preferred datum shift method to use for coordinate operations.
`static Hints.Key`	`DECIMATION_POLICY`	Decimation choosing policy.
`static Hints.Key`	`DEFAULT_COORDINATE_REFERENCE_SYSTEM`	The default `CoordinateReferenceSystem` to use.
`static double`	`DEFAULT_RESAMPLE_TOLERANCE`	Default resample tolerance value, if not specified via the `RESAMPLE_TOLERANCE` hint
`static Hints.Key`	`ENCODE_EWKT`	A flag to enabled/disable EWKT geometry encoding in ECQL
`static Hints.Key`	`ENTITY_RESOLVER`	The `EntityResolver` instance to use when configuring SAXParsers.
`static Hints.Key`	`EPSG_DATA_SOURCE`	The data source name to lookup from JNDI when initializing the EPSG factory.
`static Hints.ClassKey`	`EXECUTOR_SERVICE`	The `ExecutorService` to use.
`static Hints.Key`	`FEATURE_2D`	Request that the features returned by the feature collections should be 2D only.
`static Hints.ClassKey`	`FEATURE_COLLECTIONS`	The `org.geotools.feature.FeatureCollections` instance to use.
`static Hints.Key`	`FEATURE_DETACHED`	Indicates the features returned by the feature collections should be considered detached from the datastore.
`static Hints.ClassKey`	`FEATURE_FACTORY`	The `FeatureFactory` instance to use.
`static Hints.ClassKey`	`FEATURE_TYPE_FACTORY`	The `FeatureTypeFactory` instance to use.
`static Hints.ClassKey`	`FILTER_FACTORY`	The `FilterFactory` instance to use.
`static Hints.Key`	`FORCE_AXIS_ORDER_HONORING`	Applies the `FORCE_LONGITUDE_FIRST_AXIS_ORDER` hint to some factories that usually ignore it.
`static Hints.Key`	`FORCE_LONGITUDE_FIRST_AXIS_ORDER`	Tells if the coordinate systems created by an authority factory should be forced to (`longitude`,`latitude`) axis order.
`static Hints.Key`	`FORCE_SRS_STYLE`	Forces encoding all CRS with the srs style
`static Hints.Key`	`FORCE_STANDARD_AXIS_DIRECTIONS`	Tells if the coordinate systems created by an authority factory should be forced to standard axis directions.
`static Hints.Key`	`FORCE_STANDARD_AXIS_UNITS`	Tells if the coordinate systems created by an authority factory should be forced to standard axis units.
`static Hints.ClassKey`	`GEOMETRY_CLIP`	Used along with vector tile geometries, includes the clip mask to be used when rendering the geometry (geometries in vector tiles can span across tiles, in that case, they have a gutter that should be removed when rendering them)
`static Hints.Key`	`GEOMETRY_DISTANCE`	Asks a datastore having a vector pyramid (pre-generalized geometries) to return the geometry version whose points have been generalized less than the specified distance (further generalization might be performed by the client in memory).
`static Hints.Key`	`GEOMETRY_GENERALIZATION`	Asks a datastore to perform a topology preserving on the fly generalization of the geometries.
`static Hints.Key`	`GEOMETRY_SIMPLIFICATION`	Asks a datastore to perform a non topology preserving on the fly generalization of the geometries (e.g., returning self crossing polygons as a result of the geoneralization is considered valid).
`static Hints.Key`	`GEOMETRY_VALIDATE`	If `true`, geometry will be validated on creation.
`static Hints.Key`	`GRANULE_REMOVAL_POLICY`	Granule removachoosing policy.
`static Hints.ClassKey`	`GRID_COVERAGE_FACTORY`	The GridCoverageFactory to be used.
`static Hints.ClassKey`	`HTTP_CLIENT`	Which Http client should be created.
`static Hints.ClassKey`	`HTTP_CLIENT_FACTORY`	Which Http client factory should be used
`static Hints.Key`	`HTTP_LOGGING`	Should we log each http request FALSE/TRUE/charset
`static Hints.Key`	`JAI_INSTANCE`	The `JAI` instance to use.
`static Hints.ClassKey`	`JTS_COORDINATE_SEQUENCE_FACTORY`	The `CoordinateSequenceFactory` instance to use.
`static Hints.ClassKey`	`JTS_GEOMETRY_FACTORY`	The `GeometryFactory` instance to use.
`static Hints.Key`	`JTS_PRECISION_MODEL`	The `PrecisionModel` instance to use.
`static Hints.Key`	`JTS_SRID`	The spatial reference ID for `GeometryFactory`.
`static Hints.Key`	`LENIENT_DATUM_SHIFT`	Tells if coordinate operations should be allowed even when a datum shift is required while no method is found applicable.
`static Hints.Key`	`LINEARIZATION_TOLERANCE`	The default linearization tolerance for curved geometries
`static Hints.Key`	`LOCAL_DATE_TIME_HANDLING`	Controls date field handling.
`static Hints.ClassKey`	`MATH_TRANSFORM_FACTORY`	The `MathTransformFactory` instance to use.
`static Hints.Key`	`MAX_ALLOWED_TILES`	Key to control the maximum allowed number of tiles that we will load.
`static Hints.Key`	`MAX_MEMORY_SORT`	Key to control the maximum number of features that will be kept in memory when performing a fallback merge-sort (used when the datastore does not have native means to handle feature sorting)
`static Hints.Key`	`MOSAIC_LOCATION_ATTRIBUTE`	Key to control the name of the attribute that contains the location for the tiles in the mosaic index.
`static Hints.Key`	`OVERVIEW_POLICY`	Overview choosing policy.
`static Hints.Key`	`PRIMITIVE_FACTORY`	The `org.geotools.api.geometry.primitive.PrimitiveFactory` instance to use.
`static Hints.Key`	`PROVIDED_FID`	Optional Hint used in conjunction with USE_POVIDED_FID above.
`static Hints.ClassKey`	`REPOSITORY`	The `Repository` to use to fetch DataAccess and DataStore
`static Hints.Key`	`RESAMPLE_TOLERANCE`	Resample tolerance (defaults to `DEFAULT_RESAMPLE_TOLERANCE`)
`static Hints.Key`	`RESOLVE`	Resolve setting for resolving resources.
`static Hints.Key`	`RESOLVE_TIMEOUT`	The maximum time-out for resolving resources.
`static Hints.Key`	`SAMPLE_DIMENSION_TYPE`	The `SampleDimensionType` to use.
`static Hints.Key`	`SCREENMAP`	The rendering aid used to avoid painting tiny features over and over in the same pixel
`static Hints.Key`	`SKIP_EXTERNAL_OVERVIEWS`	Indicates whether to skip external overview files when loading a Coverage (on by default in most raster readers).
`static Hints.ClassKey`	`STYLE_FACTORY`	The `StyleFactory` instance to use.
`static Hints.Key`	`USE_JAI_IMAGEREAD`	Tells to the `GridCoverageReader` instances to read the image using the JAI ImageRead operation (leveraging on Deferred Execution Model, Tile Caching,...) or the direct `ImageReader`'s read methods.
`static Hints.Key`	`USE_PROVIDED_FID`	When this key is used in the user data section of a feature and the feature store query capabilities reports being able to use provided feature ids the store will try to use the user provided feature id during insertion, and will fail if the FID cannot be parsed into a valid storage identifier
`static Hints.Key`	`VERSION`	Version number of the requested service.
`static Hints.ClassKey`	`VIRTUAL_TABLE_PARAMETERS`	Provides the parameter values to a JDBC parametrized SQL view.

Fields inherited from class RenderingHints
KEY_ALPHA_INTERPOLATION, KEY_ANTIALIASING, KEY_COLOR_RENDERING, KEY_DITHERING, KEY_FRACTIONALMETRICS, KEY_INTERPOLATION, KEY_RENDERING, KEY_RESOLUTION_VARIANT, KEY_STROKE_CONTROL, KEY_TEXT_ANTIALIASING, KEY_TEXT_LCD_CONTRAST, VALUE_ALPHA_INTERPOLATION_DEFAULT, VALUE_ALPHA_INTERPOLATION_QUALITY, VALUE_ALPHA_INTERPOLATION_SPEED, VALUE_ANTIALIAS_DEFAULT, VALUE_ANTIALIAS_OFF, VALUE_ANTIALIAS_ON, VALUE_COLOR_RENDER_DEFAULT, VALUE_COLOR_RENDER_QUALITY, VALUE_COLOR_RENDER_SPEED, VALUE_DITHER_DEFAULT, VALUE_DITHER_DISABLE, VALUE_DITHER_ENABLE, VALUE_FRACTIONALMETRICS_DEFAULT, VALUE_FRACTIONALMETRICS_OFF, VALUE_FRACTIONALMETRICS_ON, VALUE_INTERPOLATION_BICUBIC, VALUE_INTERPOLATION_BILINEAR, VALUE_INTERPOLATION_NEAREST_NEIGHBOR, VALUE_RENDER_DEFAULT, VALUE_RENDER_QUALITY, VALUE_RENDER_SPEED, VALUE_RESOLUTION_VARIANT_BASE, VALUE_RESOLUTION_VARIANT_DEFAULT, VALUE_RESOLUTION_VARIANT_DPI_FIT, VALUE_RESOLUTION_VARIANT_SIZE_FIT, VALUE_STROKE_DEFAULT, VALUE_STROKE_NORMALIZE, VALUE_STROKE_PURE, VALUE_TEXT_ANTIALIAS_DEFAULT, VALUE_TEXT_ANTIALIAS_GASP, VALUE_TEXT_ANTIALIAS_LCD_HBGR, VALUE_TEXT_ANTIALIAS_LCD_HRGB, VALUE_TEXT_ANTIALIAS_LCD_VBGR, VALUE_TEXT_ANTIALIAS_LCD_VRGB, VALUE_TEXT_ANTIALIAS_OFF, VALUE_TEXT_ANTIALIAS_ON

Constructor Summary

Constructors
Constructor	Description
`Hints()`	Constructs an initially empty set of hints.
`Hints(RenderingHints hints)`	Constructs a new object with keys and values initialized from the specified hints (which may be null).
`Hints(RenderingHints.Key key, Object value)`	Constructs a new object with the specified key/value pair.
`Hints(RenderingHints.Key key1, Object value1, RenderingHints.Key key2, Object value2)`	Constructs a new object with two key/value pair.
`Hints(RenderingHints.Key key1, Object value1, RenderingHints.Key key2, Object value2, Object... pairs)`	Constructs a new object from key/value pair.
`Hints(Map<? extends RenderingHints.Key,?> hints)`	Constructs a new object with keys and values initialized from the specified map (which may be null).

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Hints`	`clone()`	Returns a new map of hints with the same content than this map.
`static Object`	`getSystemDefault(RenderingHints.Key key)`	Returns the hint default value for the specified key.
`static Object`	`putSystemDefault(RenderingHints.Key key, Object value)`	Adds a hint value to the set of default hints.
`static Object`	`removeSystemDefault(RenderingHints.Key key)`	Removes the specified hints from the set of default hints.
`static void`	`scanSystemProperties()`	Notifies that system properties will need to be scanned for any property keys defined in the `GeoTools` class.
`String`	`toString()`	Returns a string representation of the hints.

Methods inherited from class RenderingHints
add, clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

- Field Detail
  - CRS_AUTHORITY_FACTORY
```
public static final Hints.ClassKey CRS_AUTHORITY_FACTORY
```
    The CRSAuthorityFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCRSAuthorityFactory
  - CS_AUTHORITY_FACTORY
```
public static final Hints.ClassKey CS_AUTHORITY_FACTORY
```
    The CSAuthorityFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCSAuthorityFactory
  - DATUM_AUTHORITY_FACTORY
```
public static final Hints.ClassKey DATUM_AUTHORITY_FACTORY
```
    The DatumAuthorityFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getDatumAuthorityFactory
  - CRS_FACTORY
```
public static final Hints.ClassKey CRS_FACTORY
```
    The CRSFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCRSFactory
  - CS_FACTORY
```
public static final Hints.ClassKey CS_FACTORY
```
    The CSFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCSFactory
  - DATUM_FACTORY
```
public static final Hints.ClassKey DATUM_FACTORY
```
    The DatumFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getDatumFactory
  - COORDINATE_OPERATION_FACTORY
```
public static final Hints.ClassKey COORDINATE_OPERATION_FACTORY
```
    The CoordinateOperationFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCoordinateOperationFactory
  - COORDINATE_OPERATION_AUTHORITY_FACTORY
```
public static final Hints.ClassKey COORDINATE_OPERATION_AUTHORITY_FACTORY
```
    The CoordinateOperationAuthorityFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCoordinateOperationAuthorityFactory
  - MATH_TRANSFORM_FACTORY
```
public static final Hints.ClassKey MATH_TRANSFORM_FACTORY
```
    The MathTransformFactory instance to use.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getMathTransformFactory
  - DEFAULT_COORDINATE_REFERENCE_SYSTEM
```
public static final Hints.Key DEFAULT_COORDINATE_REFERENCE_SYSTEM
```
    The default CoordinateReferenceSystem to use. This is used by some factories capable to provide a default CRS when no one were explicitly specified by the user.
    
    Since:
    
    2.2
  - CRS_AUTHORITY_EXTRA_DIRECTORY
```
public static final Hints.FileKey CRS_AUTHORITY_EXTRA_DIRECTORY
```
    Used to direct WKT CRS Authority to a directory containing extra definitions. The value should be an instance of File or String refering to an existing directory.
    Filenames in the supplied directory should be of the form authority.properties where authority is the authority name space to use. For example the "epsg.properties" file contains extra CRS to add as new EPSG codes.
    To set the directory on the command line:
    
    -D"org.geotools.referencing.crs-directory"=path
    Since:
    
    2.4
  - EPSG_DATA_SOURCE
```
public static final Hints.Key EPSG_DATA_SOURCE
```
    The data source name to lookup from JNDI when initializing the EPSG factory. Possible values:
    
    String - used with JNDI to locate datasource. This hint has no effect if there is no JNDI initial context setup.
    DataSource - used as is.
    missing - default to "java:comp/env/jdbc/EPSG".
    
    To set on the command line:
    
    -D"org.geotools.referencing.epsg-datasource"=jndiReference
    Since:
    
    2.4
  - DATUM_SHIFT_METHOD
```
public static final Hints.OptionKey DATUM_SHIFT_METHOD
```
    The preferred datum shift method to use for coordinate operations. Valid values are "Molodenski", "Abridged_Molodenski" or "Geocentric". Other values may be supplied if a math transform exists for that name, but this is not guaranteed to work.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCoordinateOperationFactory
  - LENIENT_DATUM_SHIFT
```
public static final Hints.Key LENIENT_DATUM_SHIFT
```
    Tells if coordinate operations should be allowed even when a datum shift is required while no method is found applicable. It may be for example that no Bursa Wolf parameters were found for a datum shift. The default value is FALSE, which means that coordinate operation factory throws an exception if such a case occurs. If this hint is set to TRUE, then the user is strongly encouraged to check the positional accuracy for every transformation created. If the set of positional accuracy contains DATUM_SHIFT_OMITTED, this means that an "ellipsoid shift" were applied without real datum shift method available, and the transformed coordinates may have one kilometer error. The application should warn the user (e.g. popup a message dialog box) in such case.
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCoordinateOperationFactory
  - FORCE_LONGITUDE_FIRST_AXIS_ORDER
```
public static final Hints.Key FORCE_LONGITUDE_FIRST_AXIS_ORDER
```
    Tells if the coordinate systems created by an authority factory should be forced to (longitude,latitude) axis order. This hint is especially useful for creating objects from EPSG codes. Most defined in the EPSG database use (latitude,longitude) axis order. Unfortunatly, many data sources available in the world uses the opposite axis order and still claim to use a CRS described by an EPSG code. This hint allows to handle such data.
    This hint shall be passed to the FactoryFinder.getCRSAuthorityFactory(...) method. Whatever this hint is supported or not is authority dependent. In the default Geotools configuration, this hint is supported for the "EPSG" authority.
    If this hint is not provided, then the default value depends on many factors including system properties and plugins available in the classpath. In Geotools implementation, the default value is usually FALSE with one exception: If the system property is set to true, then the default value is true at least for the default EPSG factory.
    If both the above-cited system property and this hint are provided, then this hint has precedence. This allow axis order control on a data store basis, and keep the system-wide property as the default value only for cases where axis order is unspecified.
    To set on the command line:
    
    -D"org.geotools.referencing.forceXY"=longitudeFirst
    Since:
    
    2.3
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCSFactory, org.geotools.referencing.FactoryFinder#getCRSFactory, OrderedAxisAuthorityFactory, LongitudeFirstFactory
  - FORCE_SRS_STYLE
```
public static final Hints.Key FORCE_SRS_STYLE
```
    Forces encoding all CRS with the srs style
  - FORCE_AXIS_ORDER_HONORING
```
public static final Hints.Key FORCE_AXIS_ORDER_HONORING
```
    Applies the FORCE_LONGITUDE_FIRST_AXIS_ORDER hint to some factories that usually ignore it. The axis order issue is of concern mostly to the "EPSG" name space. Codes in the "http://www.opengis.net/gml/srs/" or "urn:ogc" name space usually ignore the axis order hint, especially the later which is clearly defined by OGC - in theory users are not allowed to change its behavior. If nevertheless a user really need to change its behavior, then he must provides explicitly a comma separated list of authorities with this FORCE_AXIS_ORDER_HONORING hint in addition to setting the FORCE_LONGITUDE_FIRST_AXIS_ORDER hint.
    Example: In order to apply the (longitude,latitude) axis order to "http://www.opengis.net/" and "urn:ogc" name spaces in addition to EPSG, use the following hints:
    hints.put(FORCE_LONGITUDE_FIRST_AXIS_ORDER, Boolean.TRUE); hints.put(FORCE_AXIS_ORDER_HONORING, "http, urn");
    Note that the application of (longitude,latitude) axis order to the "urn:ogc" name space is a clear violation of OGC specification.
    
    Since:
    
    2.4
  - FORCE_STANDARD_AXIS_DIRECTIONS
```
public static final Hints.Key FORCE_STANDARD_AXIS_DIRECTIONS
```
    Tells if the coordinate systems created by an authority factory should be forced to standard axis directions. If true, then South axis directions are forced to North, West axis directions are forced to East, etc. If false, then the axis directions are left unchanged.
    This hint shall be passed to the FactoryFinder.getCRSAuthorityFactory(...) method. Whatever this hint is supported or not is authority dependent.
    
    Since:
    
    2.3
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCSFactory, org.geotools.referencing.FactoryFinder#getCRSFactory, OrderedAxisAuthorityFactory
  - FORCE_STANDARD_AXIS_UNITS
```
public static final Hints.Key FORCE_STANDARD_AXIS_UNITS
```
    Tells if the coordinate systems created by an authority factory should be forced to standard axis units. If true, then all angular units are forced to degrees and linear units to meters. If false, then the axis units are left unchanged.
    This hint shall be passed to the FactoryFinder.getCRSAuthorityFactory(...) method. Whatever this hint is supported or not is authority dependent.
    
    Since:
    
    2.3
    
    See Also:
    
    org.geotools.referencing.FactoryFinder#getCSFactory, org.geotools.referencing.FactoryFinder#getCRSFactory, OrderedAxisAuthorityFactory
  - VERSION
```
public static final Hints.Key VERSION
```
    Version number of the requested service. This hint is used for example in order to get a CRS authority factory backed by a particular version of EPSG database. The value should be an instance of Version.
    
    Since:
    
    2.4
  - ENTITY_RESOLVER
```
public static final Hints.Key ENTITY_RESOLVER
```
    The EntityResolver instance to use when configuring SAXParsers.
    
    Since:
    
    15
  - USE_PROVIDED_FID
```
public static final Hints.Key USE_PROVIDED_FID
```
    When this key is used in the user data section of a feature and the feature store query capabilities reports being able to use provided feature ids the store will try to use the user provided feature id during insertion, and will fail if the FID cannot be parsed into a valid storage identifier
    Example use with Feature.getUserData():feature.getUserData().put( Hints.USE_PROVIDED_FID, true );
    
    Since:
    
    2.7
  - PROVIDED_FID
```
public static final Hints.Key PROVIDED_FID
```
    Optional Hint used in conjunction with USE_POVIDED_FID above. This is used when adding Features to the end of a FeatureWriter, allowing you to override the generated feature ID when write() is called.
    Example use with Feature.getUserData():
    feature.getUserData().put( Hints.USE_PROVIDED_FID, true ); feature.getUserData().put( Hints.PROVIDED_FID, "fid5" );
    Since:
    
    8.0
  - CRS
```
public static final Hints.Key CRS
```
    The CoordinateReferenceSystem to use in ISO geometry factories.
    
    Since:
    
    2.5
    
    See Also:
    
    JTS_SRID
  - LINEARIZATION_TOLERANCE
```
public static final Hints.Key LINEARIZATION_TOLERANCE
```
    The default linearization tolerance for curved geometries
    
    Since:
    
    12.0
    
    See Also:
    
    CurvedGeometryFactory
  - PRIMITIVE_FACTORY
```
public static final Hints.Key PRIMITIVE_FACTORY
```
    The org.geotools.api.geometry.primitive.PrimitiveFactory instance to use.
    
    Since:
    
    2.5
  - GEOMETRY_VALIDATE
```
public static final Hints.Key GEOMETRY_VALIDATE
```
    If true, geometry will be validated on creation. A value of false may speedup geometry creation at the cost of less safety.
    
    Since:
    
    2.5
  - JTS_GEOMETRY_FACTORY
```
public static final Hints.ClassKey JTS_GEOMETRY_FACTORY
```
    The GeometryFactory instance to use.
    
    See Also:
    
    #GEOMETRY_FACTORY, org.geotools.geometry.jts.FactoryFinder#getGeometryFactory
  - JTS_COORDINATE_SEQUENCE_FACTORY
```
public static final Hints.ClassKey JTS_COORDINATE_SEQUENCE_FACTORY
```
    The CoordinateSequenceFactory instance to use.
    
    See Also:
    
    org.geotools.geometry.jts.FactoryFinder#getCoordinateSequenceFactory
  - JTS_PRECISION_MODEL
```
public static final Hints.Key JTS_PRECISION_MODEL
```
    The PrecisionModel instance to use.
    
    See Also:
    
    org.geotools.geometry.jts.FactoryFinder#getPrecisionModel, #PRECISION
  - JTS_SRID
```
public static final Hints.Key JTS_SRID
```
    The spatial reference ID for GeometryFactory.
    
    See Also:
    
    org.geotools.geometry.jts.FactoryFinder#getGeometryFactory, CRS
  - FEATURE_FACTORY
```
public static Hints.ClassKey FEATURE_FACTORY
```
    The FeatureFactory instance to use.
    
    Since:
    
    2.5
  - FEATURE_TYPE_FACTORY
```
public static Hints.ClassKey FEATURE_TYPE_FACTORY
```
    The FeatureTypeFactory instance to use.
    
    Since:
    
    2.4
  - FEATURE_COLLECTIONS
```
public static final Hints.ClassKey FEATURE_COLLECTIONS
```
    The org.geotools.feature.FeatureCollections instance to use.
    
    Since:
    
    2.4
    
    See Also:
    
    CommonFactoryFinder#getFeatureCollections
  - FEATURE_DETACHED
```
public static final Hints.Key FEATURE_DETACHED
```
    Indicates the features returned by the feature collections should be considered detached from the datastore. If true the features can be udpated without altering the backing store.
    Examples of features that are "attached" are features are kept in memory or features managed by a transparent persistence mechanism like Hibernate.
    
    Since:
    
    2.4
  - FEATURE_2D
```
public static final Hints.Key FEATURE_2D
```
    Request that the features returned by the feature collections should be 2D only. Can be used to prevent the request of the third ordinate when only two are going to be used.
    
    Since:
    
    2.4.1
  - MAX_MEMORY_SORT
```
public static final Hints.Key MAX_MEMORY_SORT
```
    Key to control the maximum number of features that will be kept in memory when performing a fallback merge-sort (used when the datastore does not have native means to handle feature sorting)
    
    Since:
    
    2.7.3
  - GEOMETRY_DISTANCE
```
public static final Hints.Key GEOMETRY_DISTANCE
```
    Asks a datastore having a vector pyramid (pre-generalized geometries) to return the geometry version whose points have been generalized less than the specified distance (further generalization might be performed by the client in memory).
    The geometries returned are supposed to be topologically valid.
  - GEOMETRY_GENERALIZATION
```
public static final Hints.Key GEOMETRY_GENERALIZATION
```
    Asks a datastore to perform a topology preserving on the fly generalization of the geometries. The datastore will return geometries generalized at the specified distance.
  - GEOMETRY_SIMPLIFICATION
```
public static final Hints.Key GEOMETRY_SIMPLIFICATION
```
    Asks a datastore to perform a non topology preserving on the fly generalization of the geometries (e.g., returning self crossing polygons as a result of the geoneralization is considered valid).
  - SCREENMAP
```
public static final Hints.Key SCREENMAP
```
    The rendering aid used to avoid painting tiny features over and over in the same pixel
  - COORDINATE_DIMENSION
```
public static final Hints.Key COORDINATE_DIMENSION
```
    The actual coordinate dimensions of the geometry (to be used in the GeometryDescriptor user map)
  - STYLE_FACTORY
```
public static final Hints.ClassKey STYLE_FACTORY
```
    The StyleFactory instance to use.
    
    Since:
    
    2.4
  - COLOR_DEFINITION
```
public static final Hints.OptionKey COLOR_DEFINITION
```
    The color definition to use when converting from String to Color. "CSS" corresponds to the CSS Color Module 4 name set ( https://www.w3.org/TR/css-color-4/#named-colors)
    
    Since:
    
    17
  - ATTRIBUTE_TYPE_FACTORY
```
public static final Hints.ClassKey ATTRIBUTE_TYPE_FACTORY
```
    The org.geotools.feature.AttributeTypeFactory instance to use.
    
    Since:
    
    2.4
  - FILTER_FACTORY
```
public static final Hints.ClassKey FILTER_FACTORY
```
    The FilterFactory instance to use.
    
    Since:
    
    2.4
  - VIRTUAL_TABLE_PARAMETERS
```
public static final Hints.ClassKey VIRTUAL_TABLE_PARAMETERS
```
    Provides the parameter values to a JDBC parametrized SQL view. The value of the hint must be a Map
    
    Since:
    
    2.7
  - GEOMETRY_CLIP
```
public static final Hints.ClassKey GEOMETRY_CLIP
```
    Used along with vector tile geometries, includes the clip mask to be used when rendering the geometry (geometries in vector tiles can span across tiles, in that case, they have a gutter that should be removed when rendering them)
  - MAX_ALLOWED_TILES
```
public static final Hints.Key MAX_ALLOWED_TILES
```
    Key to control the maximum allowed number of tiles that we will load. If this number is exceeded, i.e. we request an area which is too large instead of getting stuck with opening thousands of files we throw an error.
    
    Since:
    
    2.5
  - MOSAIC_LOCATION_ATTRIBUTE
```
public static final Hints.Key MOSAIC_LOCATION_ATTRIBUTE
```
    Key to control the name of the attribute that contains the location for the tiles in the mosaic index.
    
    Since:
    
    2.5
  - USE_JAI_IMAGEREAD
```
public static final Hints.Key USE_JAI_IMAGEREAD
```
    Tells to the GridCoverageReader instances to read the image using the JAI ImageRead operation (leveraging on Deferred Execution Model, Tile Caching,...) or the direct ImageReader's read methods.
    
    Since:
    
    2.4
  - OVERVIEW_POLICY
```
public static final Hints.Key OVERVIEW_POLICY
```
    Overview choosing policy. The value must be one of {link #org.geotools.coverage.grid.io.OverviewPolicy} enumeration.
    
    Since:
    
    2.5
  - DECIMATION_POLICY
```
public static final Hints.Key DECIMATION_POLICY
```
    Decimation choosing policy. The value must be one of {link #org.geotools.coverage.grid.io.DecimationPolicy} enumeration.
    
    Since:
    
    2.7
  - JAI_INSTANCE
```
public static final Hints.Key JAI_INSTANCE
```
    The JAI instance to use.
  - SAMPLE_DIMENSION_TYPE
```
public static final Hints.Key SAMPLE_DIMENSION_TYPE
```
    The SampleDimensionType to use.
  - GRID_COVERAGE_FACTORY
```
public static final Hints.ClassKey GRID_COVERAGE_FACTORY
```
    The GridCoverageFactory to be used.
    
    Since:
    
    2.7
  - EXECUTOR_SERVICE
```
public static final Hints.ClassKey EXECUTOR_SERVICE
```
    The ExecutorService to use.
    
    Since:
    
    2.7
  - DEFAULT_RESAMPLE_TOLERANCE
```
public static double DEFAULT_RESAMPLE_TOLERANCE
```
    Default resample tolerance value, if not specified via the RESAMPLE_TOLERANCE hint
  - RESAMPLE_TOLERANCE
```
public static final Hints.Key RESAMPLE_TOLERANCE
```
    Resample tolerance (defaults to DEFAULT_RESAMPLE_TOLERANCE)
    To set on the command line:
    
    -D"org.geotools.referencing.resampleTolerance"=0.333
    Since:
    
    2.7
  - REPOSITORY
```
public static final Hints.ClassKey REPOSITORY
```
    The Repository to use to fetch DataAccess and DataStore
    
    Since:
    
    18
  - GRANULE_REMOVAL_POLICY
```
public static final Hints.Key GRANULE_REMOVAL_POLICY
```
    Granule removachoosing policy. The value must be one of {link #org.geotools.coverage.grid.io.GranuleRemovalPolicy} enumeration.
    
    Since:
    
    2.5
  - SKIP_EXTERNAL_OVERVIEWS
```
public static final Hints.Key SKIP_EXTERNAL_OVERVIEWS
```
    Indicates whether to skip external overview files when loading a Coverage (on by default in most raster readers). The lookup can be costly if the files are on a remote server or network disk.
  - RESOLVE
```
public static final Hints.Key RESOLVE
```
    Resolve setting for resolving resources. ("local", "none", "remote" or "all")
    This maps directly to the resolve parameter in a WFS query.
  - RESOLVE_TIMEOUT
```
public static final Hints.Key RESOLVE_TIMEOUT
```
    The maximum time-out for resolving resources.
    This maps directly to the resolveTimeOut parameter in a WFS query.
  - ASSOCIATION_TRAVERSAL_DEPTH
```
public static final Hints.Key ASSOCIATION_TRAVERSAL_DEPTH
```
    The maximum number of associations traversed in a datastore query.
    This maps directly to the traversalXlinkDepth parameter in a WFS query.
  - ASSOCIATION_PROPERTY
```
public static final Hints.Key ASSOCIATION_PROPERTY
```
    The name of a property to traverse in a datastore query.
    This maps directly to a xlinkPropertyName in a WFS query.
  - CACHE_POLICY
```
public static final Hints.OptionKey CACHE_POLICY
```
    Policy to use for caching referencing objects. Valid values are:
    
    "weak" for holding values through weak references. This option does not actually cache the objects since the garbage collector cleans weak references aggressively, but it allows sharing the instances already created and still in use.
    "fixed") for holding a fixed number of values specified by {@link #CACHE_LIMIT}. <li>{@code "all"} for holding values through strong references.</li> <li>{@code "none"} for disabling the cache.</li> <li>{@code "soft"} for holding the value throuhg(@linkplain java.lang.ref.SoftReference soft references.
    Since:
    
    2.5
  - CACHE_LIMIT
```
public static final Hints.IntegerKey CACHE_LIMIT
```
    The recommended maximum number of referencing objects to hold in a authority factory.
    
    Since:
    
    2.5
  - AUTHORITY_MAX_ACTIVE
```
public static final Hints.IntegerKey AUTHORITY_MAX_ACTIVE
```
    The maximum number of active authority factories. The default is the number of available processors plus one.
    This hint is treated as an absolute limit for AbstractAuthorityMediator instances such as org.geotools.referencing.factory.epsg.HsqlDialectEpsgMediator. As such this will be the absolute limit on the number of database connections the mediator will make use of.
    When this limit it reached, code will be forced to block while waiting for a connection to become available.
    When this value is non positive their is no limit to the number of active authority factories deployed.
    
    Since:
    
    2.5
  - AUTHORITY_MIN_IDLE
```
public static final Hints.IntegerKey AUTHORITY_MIN_IDLE
```
    Minimum number of objects required before the evictor will begin removing objects. This value is also used by AUTHORITY_SOFTMIN_EVICT_IDLETIME to keep this many idle workers around.
    In practice this value indicates the number of database connections the application will hold open "just in case".
    Recomendations:
    
    Desktop Application: 1
    Server Application: 2-3
    To agree with J2EE conventions you will want this value to be zero.
    Since:
    
    2.5
  - AUTHORITY_MAX_IDLE
```
public static final Hints.IntegerKey AUTHORITY_MAX_IDLE
```
    The number of idle AuthorityFactories.
    This hint is treated as a recommendation for AbstractAuthorityMediator instances such as HsqlDialectEpsgMediator. As such this will control the number of connections the mediator is comfortable having open.
    If AUTHORITY_MAX_ACTIVE is set to 20, up to twenty connections will be used during heavy load. If the AUTHORITY_MAX_IDLE is set to 10, connections will be immediately reclaimed until only 10 are open. As these 10 remain idle for AUTHORITY_
    When the amount of time specified by AUTHORITY_IDLE_WAIT is non zero Max idle controls the maximum number of objects that can sit idle in the pool at any time. When negative, there is no limit to the number of objects that may be idle at one time.
    
    Since:
    
    2.5
  - AUTHORITY_MIN_EVICT_IDLETIME
```
public static final Hints.IntegerKey AUTHORITY_MIN_EVICT_IDLETIME
```
    When the evictor is run, if more time (in milliseconds) than the value in AUTHORITY_MIN_EVICT_IDLETIME has passed, then the worker is destroyed.
    
    Since:
    
    2.5
  - AUTHORITY_SOFTMIN_EVICT_IDLETIME
```
public static final Hints.IntegerKey AUTHORITY_SOFTMIN_EVICT_IDLETIME
```
    When the evictor is run, workers which have been idle for more than this value will be destroyed if and only if the number of idle workers exceeds AUTHORITY_MIN_IDLE.
    
    Since:
    
    2.5
  - AUTHORITY_TIME_BETWEEN_EVICTION_RUNS
```
public static final Hints.IntegerKey AUTHORITY_TIME_BETWEEN_EVICTION_RUNS
```
    Time in milliseconds to wait between eviction runs.
    
    Since:
    
    2.5
  - COMPARISON_TOLERANCE
```
public static final Hints.DoubleKey COMPARISON_TOLERANCE
```
    Tolerance used in comparisons between floating point values. Two floating points A and B are considered the same if A * (1 - tol) <= B <= A * (1 + tol). The default value is 0, meaning the two doubles have to be exactly the same (a bit to bit comparison will be performed).
    
    Since:
    
    2.6
  - LOCAL_DATE_TIME_HANDLING
```
public static final Hints.Key LOCAL_DATE_TIME_HANDLING
```
    Controls date field handling. If true, all Date fields are treated as local dates being unrelated to time zones. Otherwise they are treated as time zone related. Local dates are serialized to string using the local time zone (JVM default time zone). Time zone related dates are serialized to string using GMT. Default is false, Date treated as time zone related.
    To set on the command line:
    
    -D"org.geotools.localDateTimeHandling"=true
    Since:
    
    15.0
  - ENCODE_EWKT
```
public static final Hints.Key ENCODE_EWKT
```
    A flag to enabled/disable EWKT geometry encoding in ECQL
  - HTTP_CLIENT_FACTORY
```
public static final Hints.ClassKey HTTP_CLIENT_FACTORY
```
    Which Http client factory should be used
  - HTTP_CLIENT
```
public static final Hints.ClassKey HTTP_CLIENT
```
    Which Http client should be created.
  - HTTP_LOGGING
```
public static final Hints.Key HTTP_LOGGING
```
    Should we log each http request FALSE/TRUE/charset
  - DATE_TIME_FORMAT_HANDLING
```
public static final Hints.Key DATE_TIME_FORMAT_HANDLING
```
    Controls date time formatting output for GML 2.
    To set on the command line:
    
    -D"org.geotools.dateTimeFormatHandling"=true
    Since:
    
    21.0
- Constructor Detail
  - Hints
```
public Hints()
```
    Constructs an initially empty set of hints.
    
    Since:
    
    2.5
  - Hints
```
public Hints(RenderingHints.Key key,
             Object value)
```
    Constructs a new object with the specified key/value pair.
    
    Parameters:
    
    key - The key of the particular hint property.
    
    value - The value of the hint property specified with key.
  - Hints
```
public Hints(RenderingHints.Key key1,
             Object value1,
             RenderingHints.Key key2,
             Object value2)
```
    Constructs a new object with two key/value pair.
    
    Parameters:
    
    key1 - The key for the first pair.
    
    value1 - The value for the first pair.
    
    key2 - The key2 for the second pair.
    
    value2 - The value2 for the second pair.
    
    Since:
    
    2.4
  - Hints
```
public Hints(RenderingHints.Key key1,
             Object value1,
             RenderingHints.Key key2,
             Object value2,
             Object... pairs)
```
    Constructs a new object from key/value pair.
    
    Parameters:
    
    key1 - The key for the first pair.
    
    value1 - The value for the first pair.
    
    key2 - The key2 for the second pair.
    
    value2 - The value2 for the second pair.
    
    pairs - Additional pairs of keys and values.
    
    Since:
    
    2.4
  - Hints
```
public Hints(Map<? extends RenderingHints.Key,?> hints)
```
    Constructs a new object with keys and values initialized from the specified map (which may be null).
    
    Parameters:
    
    hints - A map of key/value pairs to initialize the hints, or null if the object should be empty.
  - Hints
```
public Hints(RenderingHints hints)
```
    Constructs a new object with keys and values initialized from the specified hints (which may be null).
    
    Parameters:
    
    hints - A map of key/value pairs to initialize the hints, or null if the object should be empty.
    
    Since:
    
    2.5
- Method Detail
  - clone
```
public Hints clone()
```
    Returns a new map of hints with the same content than this map.
    
    Overrides:
    
    clone in class RenderingHints
    
    Since:
    
    2.5
  - scanSystemProperties
```
public static void scanSystemProperties()
```
    Notifies that system properties will need to be scanned for any property keys defined in the GeoTools class. New values found (if any) will be added to the set of default hints. For example if the "org.geotools.referencing.forceXY" system property is defined, then the FORCE_LONGITUDE_FIRST_AXIS_ORDER hint will be added to the set of default hints.
    This method is invoked automatically the first time it is needed. It usually don't need to be invoked explicitly, except if the system properties changed. The scan may not be performed immediately, but rather when needed at some later stage.
    
    Since:
    
    2.4
  - getSystemDefault
```
public static Object getSystemDefault(RenderingHints.Key key)
```
    Returns the hint default value for the specified key.
    
    Parameters:
    
    key - The hints key.
    
    Returns:
    
    The value for the specified key, or null if the key did not have a mapping.
    
    Since:
    
    2.4
  - putSystemDefault
```
public static Object putSystemDefault(RenderingHints.Key key,
                                      Object value)
```
    Adds a hint value to the set of default hints. Default hints can be added by call to this putDefaultHint method, to the GeoTools.init(org.geotools.util.factory.Hints) method or by system properties with keys defined by the String constants in the GeoTools class.
    
    Parameters:
    
    key - The hint key.
    
    value - The hint value.
    
    Returns:
    
    The previous value of the specified key, or null if none.
    
    Throws:
    
    IllegalArgumentException - If Hints.Key#isCompatibleValue() returns false for the specified value.
    
    Since:
    
    2.4
  - removeSystemDefault
```
public static Object removeSystemDefault(RenderingHints.Key key)
```
    Removes the specified hints from the set of default hints.
    
    Parameters:
    
    key - The hints key that needs to be removed.
    
    Returns:
    
    The value to which the key had previously been mapped, or null if the key did not have a mapping.
    
    Since:
    
    2.4
  - toString
```
public String toString()
```
    Returns a string representation of the hints. This method formats the set of hints as a tree. If some system-wide default hints exist, they are formatted after those hints for completeness.
    
    Overrides:
    
    toString in class RenderingHints
    
    Since:
    
    2.4

Class Hints

Nested Class Summary

Nested classes/interfaces inherited from interface Map

Field Summary

Fields inherited from class RenderingHints

Constructor Summary

Method Summary

Methods inherited from class RenderingHints

Methods inherited from class Object

Methods inherited from interface Map

Field Detail

CRS_AUTHORITY_FACTORY

CS_AUTHORITY_FACTORY

DATUM_AUTHORITY_FACTORY

CRS_FACTORY

CS_FACTORY

DATUM_FACTORY

COORDINATE_OPERATION_FACTORY

COORDINATE_OPERATION_AUTHORITY_FACTORY

MATH_TRANSFORM_FACTORY

DEFAULT_COORDINATE_REFERENCE_SYSTEM

CRS_AUTHORITY_EXTRA_DIRECTORY

EPSG_DATA_SOURCE

DATUM_SHIFT_METHOD

LENIENT_DATUM_SHIFT

FORCE_LONGITUDE_FIRST_AXIS_ORDER

FORCE_SRS_STYLE

FORCE_AXIS_ORDER_HONORING

FORCE_STANDARD_AXIS_DIRECTIONS

FORCE_STANDARD_AXIS_UNITS

VERSION

ENTITY_RESOLVER

USE_PROVIDED_FID

PROVIDED_FID

CRS

LINEARIZATION_TOLERANCE

PRIMITIVE_FACTORY

GEOMETRY_VALIDATE

JTS_GEOMETRY_FACTORY

JTS_COORDINATE_SEQUENCE_FACTORY

JTS_PRECISION_MODEL

JTS_SRID

FEATURE_FACTORY

FEATURE_TYPE_FACTORY

FEATURE_COLLECTIONS

FEATURE_DETACHED

FEATURE_2D

MAX_MEMORY_SORT

GEOMETRY_DISTANCE

GEOMETRY_GENERALIZATION

GEOMETRY_SIMPLIFICATION

SCREENMAP

COORDINATE_DIMENSION

STYLE_FACTORY

COLOR_DEFINITION

ATTRIBUTE_TYPE_FACTORY

FILTER_FACTORY

VIRTUAL_TABLE_PARAMETERS

GEOMETRY_CLIP

MAX_ALLOWED_TILES

MOSAIC_LOCATION_ATTRIBUTE

USE_JAI_IMAGEREAD

OVERVIEW_POLICY

DECIMATION_POLICY

JAI_INSTANCE

SAMPLE_DIMENSION_TYPE

GRID_COVERAGE_FACTORY

EXECUTOR_SERVICE

DEFAULT_RESAMPLE_TOLERANCE

RESAMPLE_TOLERANCE

REPOSITORY

GRANULE_REMOVAL_POLICY

SKIP_EXTERNAL_OVERVIEWS

RESOLVE

RESOLVE_TIMEOUT

ASSOCIATION_TRAVERSAL_DEPTH

ASSOCIATION_PROPERTY

CACHE_POLICY

CACHE_LIMIT

AUTHORITY_MAX_ACTIVE