org.geotools.filter
Interface LiteralExpression

All Superinterfaces:

Expression, ExpressionType, Literal

All Known Subinterfaces:

BBoxExpression

All Known Implementing Classes:

BBoxExpressionImpl, ConstantExpression, LiteralExpressionImpl, OverlapBehavior

Deprecated. use Literal

public interface LiteralExpression
extends Expression, Literal

Defines an expression that holds a literal for return.

Author:

Rob Hranac, Vision for New York, Chris Holmes, TOPP

Field Summary

Fields inherited from interface ExpressionType

ATTRIBUTE, ATTRIBUTE_DOUBLE, ATTRIBUTE_GEOMETRY, ATTRIBUTE_INTEGER, ATTRIBUTE_STRING, ATTRIBUTE_UNDECLARED, FUNCTION, LITERAL_DOUBLE, LITERAL_GEOMETRY, LITERAL_INTEGER, LITERAL_LONG, LITERAL_STRING, LITERAL_UNDECLARED, MATH_ADD, MATH_DIVIDE, MATH_MULTIPLY, MATH_SUBTRACT

Fields inherited from interface Expression

NIL

Method Summary

Object	getLiteral() Deprecated. use Literal.getValue().
short	getType() Deprecated. Returns the literal type.
Object	getValue(SimpleFeature feature) Deprecated. use Expression#evaluate(Feature).
void	setLiteral(Object literal) Deprecated. use Literal#setValue(Object)

Methods inherited from interface Expression

accept, evaluate

Methods inherited from interface Literal

getValue

Methods inherited from interface Expression

accept, evaluate, evaluate

Method Detail

setLiteral

void setLiteral(Object literal)
                throws IllegalFilterException

Deprecated. use Literal#setValue(Object)

Sets the literal.

Parameters:

literal - The literal to store inside this expression.

Throws:

IllegalFilterException - This literal type is not in scope.

getValue

Object getValue(SimpleFeature feature)

Deprecated. use Expression#evaluate(Feature).

Gets the value of this literal.

Parameters:

feature - Required by the interface but not used.

Returns:

the literal held by this expression. Ignores the passed in feature.

getType

short getType()

Deprecated.

Returns the literal type.

Returns:

the short representation of the literal expression type.

getLiteral

Object getLiteral()

Deprecated. use Literal.getValue().

Retrieves the literal of this expression.

Returns:

the literal held by this expression.