prefuse.data.expression
Class ObjectLiteral

java.lang.Object
  prefuse.data.expression.AbstractExpression
      prefuse.data.expression.Literal
          prefuse.data.expression.ObjectLiteral

All Implemented Interfaces:

java.util.EventListener, ExpressionListener, Expression

public class ObjectLiteral
extends Literal

Literal expression of an Object value.

Author:

jeffrey heer

Constructor Summary

ObjectLiteral(java.lang.Object value)
Create a new ObjectLiteral.

Method Summary

java.lang.Object	get(Tuple t) By default, throws an UnsupportedOperationException.
java.lang.Class	getType(Schema s) Returns the type that this expression evaluates to when tuples with the given Schema are provided as input.
java.lang.String	toString()

Methods inherited from class prefuse.data.expression.Literal

getLiteral, getLiteral, getLiteral

Methods inherited from class prefuse.data.expression.AbstractExpression

addChildListeners, addExpressionListener, expressionChanged, fireExpressionChange, getBoolean, getDouble, getFloat, getInt, getLong, hasListeners, removeChildListeners, removeExpressionListener, visit

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectLiteral

public ObjectLiteral(java.lang.Object value)

Create a new ObjectLiteral.

Parameters:

value - the literal value

Method Detail

getType

public java.lang.Class getType(Schema s)

Description copied from interface: Expression

Returns the type that this expression evaluates to when tuples with the given Schema are provided as input.

See Also:

Expression.getType(prefuse.data.Schema)

get

public java.lang.Object get(Tuple t)

Description copied from class: AbstractExpression

By default, throws an UnsupportedOperationException.

Specified by:

get in interface Expression

Overrides:

get in class AbstractExpression

Parameters:

t - the input Tuple

Returns:

the Expression return value, as an Object

See Also:

Expression.get(prefuse.data.Tuple)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()