Package org.geotools.data.mongodb.complex

Class MongoComplexUtilities

Object

MongoComplexUtilities

public final class MongoComplexUtilities
extends Object

This class contains utilities methods for dealing with MongoDB complex features.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MONGO_PARENT_PATH

Method Summary

Modifier and Type	Method	Description
static Feature	extractFeature(Object feature, String jsonPath)
static Feature	extractFeature(Feature feature, String jsonPath)	Method for extracting or casting a feature from the provided object.
static Map<String,Class>	findMappings(DBCursor cursor)	Compute the mappings for a mongodb cursor(iterator), this can be used to create a feature mapping.
static Map<String,Class>	findMappings(DBObject dbObject)	Compute the mappings for a mongo db object, this can be used to create a feature mapping.
static Object	getValue(DBObject mongoObject, String jsonPath, Supplier<GeometryCoordinateSequenceTransformer> transformer)	Will extract from the mongo db object the value that correspond to the given json path.
static Object	getValue(DBObject mongoObject, Map<String,Integer> collectionsIndexes, String jsonPath, Supplier<GeometryCoordinateSequenceTransformer> transformer)	Will extract from the mongo db object the value that correspond to the given json path.
static Object	getValue(Object object, String jsonPath)	Will try to extract from the provided object the value that correspond to the given json path.
static Object	getValues(DBObject dbObject, String jsonPath, Supplier<GeometryCoordinateSequenceTransformer> transformer)	Will extract from the mongo db object all the values that correspond to the given json path.
static Object	getValues(Object object, String jsonPath)	Will try to extract from the provided object all the values that correspond to the given json path.
static String	resolvePath(Feature feature, String jsonPath)	Concat the parent path if it exists to the provided JSON path.
static void	setParentPath(Feature feature, String parentPath)	Store the parent path in a feature user data map.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MONGO_PARENT_PATH

public static final String MONGO_PARENT_PATH

See Also:

• Constant Field Values

Method Details

resolvePath

public static String resolvePath(Feature feature,
 String jsonPath)

Concat the parent path if it exists to the provided JSON path.

setParentPath

public static void setParentPath(Feature feature,
 String parentPath)

Store the parent path in a feature user data map.

getValue

public static Object getValue(Object object,
 String jsonPath)

Will try to extract from the provided object the value that correspond to the given json path.

extractFeature

public static Feature extractFeature(Object feature,
 String jsonPath)

extractFeature

public static Feature extractFeature(Feature feature,
 String jsonPath)

Method for extracting or casting a feature from the provided object.

getValue

public static Object getValue(DBObject mongoObject,
 String jsonPath,
 Supplier<GeometryCoordinateSequenceTransformer> transformer)

Will extract from the mongo db object the value that correspond to the given json path. If the path contain a nested list of values an exception will be throw.

getValue

public static Object getValue(DBObject mongoObject,
 Map<String,Integer> collectionsIndexes,
 String jsonPath,
 Supplier<GeometryCoordinateSequenceTransformer> transformer)

Will extract from the mongo db object the value that correspond to the given json path. The provided collections indexes will be used to select the proper element for the collections present in the path.

getValues

public static Object getValues(Object object,
 String jsonPath)

Will try to extract from the provided object all the values that correspond to the given json path.

getValues

public static Object getValues(DBObject dbObject,
 String jsonPath,
 Supplier<GeometryCoordinateSequenceTransformer> transformer)

Will extract from the mongo db object all the values that correspond to the given json path. If the path contains nested collections the values from all the branches will be merged.

findMappings

public static Map<String,Class> findMappings(DBObject dbObject)

Compute the mappings for a mongo db object, this can be used to create a feature mapping.

findMappings

public static Map<String,Class> findMappings(DBCursor cursor)

Compute the mappings for a mongodb cursor(iterator), this can be used to create a feature mapping. This method will close the cursor.