org.opengis.filter.expression
Interface Literal
- All Superinterfaces:
- Expression
@XmlElement(value="Literal")
public interface Literal
- extends Expression
Instances of this interface provide a constant, literal value that can be
used in expressions.
The evaluate
method of this class must return the same
value as getValue()
.
It should be noted that content of getValue() may be persisted with with
XML based technologies. As an example a geoapi Geometry may be written out
uding GML3, while a JTS Geometry may be written out using GML2. You should
not assume that the same instance will be made available to all callers,
please limit your self to pure data objects and don't use Literal to pass
state or operations between systems.
- Since:
- GeoAPI 2.0
- Version:
- Implementation specification 1.0
Method Summary |
Object |
getValue()
Returns the constant value held by this object. |
getValue
Object getValue()
- Returns the constant value held by this object.
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