Package org.geotools.filter

Interface Summary

Interface	Description
ExpressionType	The ExpressionType interface lists all the possible type of filter.
FilterHandler	Interface to recieve filters from the filter sax parsing classes.
FilterType	The FilterType interface lists all the possible type of filter.
FunctionExpression	Quick Function implementation for direct use as a factory.
FunctionFactory	Factory interface for filter functions.

Class Summary

Class	Description
AbstractFilter	Implements Filter interface, with constants and default behaviors for methods.
AndImpl	Direct implementation of And filter.
AreaFunction	Area of provided geometry.
AttributeExpressionImpl	Defines a complex filter (could also be called logical filter).
BinaryComparisonAbstract	Abstract implementation for binary filters.
BinaryLogicAbstract
Capabilities	Allows for easier interaction with FilterCapabilities.
CartesianDistanceFilter	Defines geometry filters with a distance element.
CompareFilterImpl	Defines a comparison filter (can be a math comparison or generic equals).
ConstantExpression	The Expression class is not immutable!
DefaultExpression	Implements a default expression, with helpful variables and static methods.
ExpressionDOMParser	parsez short sections of gml for use in expressions and filters Hopefully we can get away without a full parser here.
ExpressionSAXParser
FallbackFunction	A placeholder class used to track a function the user requested that is not supported by our java implementation.
FidFilterImpl	Defines a ID filter, which holds a list of IDs ( usually feature id;s ).
FilterAbstract	Abstract implementation for Filter.
FilterAttributeExtractor	A simple visitor that extracts every attribute used by a filter or an expression Access to this class is available via: DataUtilities.attributeNames( Filter ) DataUtilities.attributeNames( Filter, FeatureType ) DataUtilities.attributeNames( Expression ) DataUtilities.attributeNames( Expression, FeatureType ) The class can also be used to determine if an expression is "static", that is, despite a complex structure does not use attribute or volatile functions, and can be thus replaced by a constant: for this use case refer to the FilterAttributeExtractor.isConstantExpression() method
FilterCapabilities	Represents the Filter capabilities that are supported by a SQLEncoder Each SQLEncoder class should have one static FilterCapabilities, representing the filter encoding operations that it can successfully perform.
FilterDOMParser	A dom based parser to build filters as per OGC 01-067
FilterFactoryImpl	Implementation of the FilterFactory, generates the filter implementations in defaultcore.
Filters	Utility class for working with Filters & Expression.
FilterSAXParser	Creates filters from FilterFilter, which reads in a SAX stream and passes the appropriate messages here.
FunctionExpressionImpl	Abstract class for a function expression implementation By default this implementation returns the provided FunctionExpressionImpl.fallback value.
FunctionFinder	Isolate function lookup code from Factory implementation(s).
FunctionImpl	Default implementation of a Function; you may extend this class to implement specific functionality.
GeometryFilterImpl	Implements a geometry filter.
IsBetweenImpl	Straight implementation of GeoAPI interface.
IsEqualsToImpl
IsGreaterThanImpl
IsGreaterThanOrEqualToImpl
IsLessThenImpl
IsLessThenOrEqualToImpl
IsNilImpl	JD: PropertyIsNil requires us to return true if a property is "nil" in the xml schema sense.
IsNotEqualToImpl
IsNullImpl
LengthFunction	Takes an AttributeExpression, and computes the length of the data for the attribute.
LikeFilterImpl	Defines a like filter, which checks to see if an attribute matches a REGEXP.
LikeToRegexConverter	Helper class that takes a LikeFilter and generates the equivalent Java Pattern syntax
LiteralExpressionImpl	Defines an expression that holds a literal for return.
LogicFilterImpl	Defines a logic filter (the only filter type that contains other filters).
LogicSAXParser	Processes messages from clients to create Logic Filters.
MathExpressionImpl	Holds a mathematical relationship between two expressions.
MultiCompareFilterImpl	Support for Multi-valued properties when comparing
NativeFilterImpl	Default implementation of a native filter that works like an holder for the native expression.
NotImpl
NullFilterImpl	Defines a null filter, which checks to see if an attribute is null.
OrImpl
SortByImpl

Exception Summary

Exception	Description
FilterFactoryCreationException	An exception that can be thrown by the StyleFactory if it fails to create the implementation of the StyleFactory.
IllegalFilterException	Defines an exception for illegal filters.
MalformedFilterException	Defines an exception for a malformed filter.