prefuse.data.expression
Class NumericLiteral

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

All Implemented Interfaces:

java.util.EventListener, ExpressionListener, Expression

public class NumericLiteral
extends Literal

Literal expression of a numeric value.

Author:

jeffrey heer

Constructor Summary

NumericLiteral(double x)
Create a new double NumericLiteral.

NumericLiteral(float x)
Create a new float NumericLiteral.

NumericLiteral(int x)
Create a new integer NumericLiteral.

NumericLiteral(long x)
Create a new long NumericLiteral.

NumericLiteral(java.lang.Object x)
Create a new NumericLiteral.

Method Summary

java.lang.Object	get(Tuple t) By default, throws an UnsupportedOperationException.
double	getDouble(Tuple t) By default, throws an UnsupportedOperationException.
float	getFloat(Tuple t) By default, throws an UnsupportedOperationException.
int	getInt(Tuple t) By default, throws an UnsupportedOperationException.
long	getLong(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, hasListeners, removeChildListeners, removeExpressionListener, visit

Methods inherited from class java.lang.Object

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

Constructor Detail

NumericLiteral

public NumericLiteral(int x)

Create a new integer NumericLiteral.

Parameters:

x - the literal numeric value

NumericLiteral

public NumericLiteral(long x)

Create a new long NumericLiteral.

Parameters:

x - the literal numeric value

NumericLiteral

public NumericLiteral(float x)

Create a new float NumericLiteral.

Parameters:

x - the literal numeric value

NumericLiteral

public NumericLiteral(double x)

Create a new double NumericLiteral.

Parameters:

x - the literal numeric value

NumericLiteral

public NumericLiteral(java.lang.Object x)

Create a new NumericLiteral.

Parameters:

x - the literal numeric value, must be an instance of Number, otherwise an exception will be thrown.

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)

getInt

public int getInt(Tuple t)

Description copied from class: AbstractExpression

By default, throws an UnsupportedOperationException.

Specified by:

getInt in interface Expression

Overrides:

getInt in class AbstractExpression

Parameters:

t - the input Tuple

Returns:

the Expression return value, as an int

See Also:

Expression.getInt(prefuse.data.Tuple)

getLong

public long getLong(Tuple t)

Description copied from class: AbstractExpression

By default, throws an UnsupportedOperationException.

Specified by:

getLong in interface Expression

Overrides:

getLong in class AbstractExpression

Parameters:

t - the input Tuple

Returns:

the Expression return value, as a long

See Also:

Expression.getLong(prefuse.data.Tuple)

getFloat

public float getFloat(Tuple t)

Description copied from class: AbstractExpression

By default, throws an UnsupportedOperationException.

Specified by:

getFloat in interface Expression

Overrides:

getFloat in class AbstractExpression

Parameters:

t - the input Tuple

Returns:

the Expression return value, as a float

See Also:

Expression.getFloat(prefuse.data.Tuple)

getDouble

public double getDouble(Tuple t)

Description copied from class: AbstractExpression

By default, throws an UnsupportedOperationException.

Specified by:

getDouble in interface Expression

Overrides:

getDouble in class AbstractExpression

Parameters:

t - the input Tuple

Returns:

the Expression return value, as a double

See Also:

Expression.getDouble(prefuse.data.Tuple)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()