org.geotools.filter
Class AbstractFilter

Object
  FilterAbstract
      AbstractFilter

All Implemented Interfaces:

FilterType, Filter

Direct Known Subclasses:

AbstractFilterImpl, BinaryComparisonAbstract, BinaryLogicAbstract

public abstract class AbstractFilter
extends FilterAbstract
implements Filter

Implements Filter interface, with constants and default behaviors for methods.

Author:

Rob Hranac, Vision for New York

Field Summary

protected short	filterType Defines filter type (all valid types defined below).
protected static Logger	LOGGER The logger for the default core module.
protected boolean	permissiveConstruction Sets the permissiveness of the filter construction handling.

Fields inherited from class FilterAbstract

factory

Fields inherited from interface Filter

ALL, NONE

Fields inherited from interface FilterType

BETWEEN, COMPARE_EQUALS, COMPARE_GREATER_THAN, COMPARE_GREATER_THAN_EQUAL, COMPARE_LESS_THAN, COMPARE_LESS_THAN_EQUAL, COMPARE_NOT_EQUALS, FID, GEOMETRY_BBOX, GEOMETRY_BEYOND, GEOMETRY_CONTAINS, GEOMETRY_CROSSES, GEOMETRY_DISJOINT, GEOMETRY_DWITHIN, GEOMETRY_EQUALS, GEOMETRY_INTERSECTS, GEOMETRY_OVERLAPS, GEOMETRY_TOUCHES, GEOMETRY_WITHIN, LIKE, LOGIC_AND, LOGIC_NOT, LOGIC_OR, NULL

Fields inherited from interface Filter

EXCLUDE, INCLUDE

Constructor Summary

protected

AbstractFilter(FilterFactory factory)

Method Summary

void	accept(FilterVisitor visitor) Deprecated. use Filter.accept(FilterVisitor, Object)
boolean	contains(SimpleFeature feature) Deprecated. use Filter#evaluate(Feature)
short	getFilterType() Deprecated. The enumeration base type system is replaced with a class based type system. An 'instanceof' check should be made instead of calling this method.
protected static boolean	isCompareFilter(short filterType) Checks to see if passed type is compare.
protected static boolean	isGeometryDistanceFilter(short filterType) Checks to see if passed type is geometry distance type.
protected static boolean	isGeometryFilter(short filterType) Checks to see if passed type is geometry.
protected static boolean	isLogicFilter(short filterType) Checks to see if passed type is logic.
protected static boolean	isMathFilter(short filterType) Checks to see if passed type is math.
protected static boolean	isSimpleFilter(short filterType) Checks to see if passed type is logic.

Methods inherited from class FilterAbstract

accept, accepts, eval, eval, eval, evaluate

Methods inherited from class Object

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

Methods inherited from interface Filter

and, evaluate, not, or

Methods inherited from interface Filter

accept, evaluate

Field Detail

LOGGER

protected static final Logger LOGGER

The logger for the default core module.

filterType

protected short filterType

Defines filter type (all valid types defined below).

permissiveConstruction

protected boolean permissiveConstruction

Sets the permissiveness of the filter construction handling.

Constructor Detail

AbstractFilter

protected AbstractFilter(FilterFactory factory)

Parameters:

factory -

Method Detail

contains

public final boolean contains(SimpleFeature feature)

Deprecated. use Filter#evaluate(Feature)

Implements a 'contained by' check for a given feature, defaulting to true.

This calls through to #evaluate(Feature).

Parameters:

feature - Specified feature to examine.

Returns:

Result of 'contains' test.

isLogicFilter

protected static boolean isLogicFilter(short filterType)

Checks to see if passed type is logic.

Parameters:

filterType - Type of filter for check.

Returns:

Whether or not this is a logic filter type.

isMathFilter

protected static boolean isMathFilter(short filterType)

Checks to see if passed type is math.

Parameters:

filterType - Type of filter for check.

Returns:

Whether or not this is a math filter type.

isCompareFilter

protected static boolean isCompareFilter(short filterType)

Checks to see if passed type is compare.

Parameters:

filterType - Type of filter for check.

Returns:

Whether or not this is a compare filter type.

isGeometryFilter

protected static boolean isGeometryFilter(short filterType)

Checks to see if passed type is geometry.

Parameters:

filterType - Type of filter for check.

Returns:

Whether or not this is a geometry filter type.

isGeometryDistanceFilter

protected static boolean isGeometryDistanceFilter(short filterType)

Checks to see if passed type is geometry distance type.

Parameters:

filterType - Type of filter for check.

Returns:

Whether or not this is a geometry filter type.

isSimpleFilter

protected static boolean isSimpleFilter(short filterType)

Checks to see if passed type is logic.

Parameters:

filterType - Type of filter for check.

Returns:

Whether or not this is a logic filter type.

getFilterType

public short getFilterType()

Deprecated. The enumeration base type system is replaced with a class based type system. An 'instanceof' check should be made instead of calling this method.

Retrieves the type of filter.

Returns:

a short representation of the filter type.

accept

public final void accept(FilterVisitor visitor)

Deprecated. use Filter.accept(FilterVisitor, Object)

Used by FilterVisitors to perform some action on this filter instance. Typicaly used by Filter decoders, but may also be used by any thing which needs infomration from filter structure. Implementations should always call: visitor.visit(this); It is importatant that this is not left to a parent class unless the parents API is identical.

Parameters:

visitor - The visitor which requires access to this filter, the method must call visitor.visit(this);