org.opengis.filter.capability
Interface Operator

All Known Subinterfaces:

FunctionName, SpatialOperator, TemporalOperator

All Known Implementing Classes:

FunctionNameImpl, OperatorImpl, SpatialOperatorImpl, TemporalOperatorImpl

public interface Operator

Indicates a supported Operator.

The operator that is supported is indicated by the getName() field, these names are formally defined to match:

• A subclass of Filter. Examples include "BBOX" and "EqualsTo"
• A subclass of Expression or Function. Examples include "ADD" and "Length"

Each filter subclass has an associated name (such as BBOX or EqualsTo), you can use this name to determine if a matching Operator is defined as part of FilterCapabilities.

Author:

Torsten Friebe, Jody Garnett (Refractions Research)

Method Summary

boolean	equals(Object obj) Equals should be implemented simply in terms of getName()
String	getName() Name of supported Operator.
int	hashCode() HashCode should be implemented simply in terms of getName().

Method Detail

getName

@UML(identifier="name",
     specification=UNSPECIFIED)
String getName()

Name of supported Operator.

Each filter subclass has an associated name (such as BBOX or EqualsTo), you can use this name to determine if a matching Operator is defined as part of FilterCapabilities.

equals

boolean equals(Object obj)

Equals should be implemented simply in terms of getName()

Overrides:

equals in class Object

hashCode

int hashCode()

HashCode should be implemented simply in terms of getName().

Overrides:

hashCode in class Object