org.pentaho.reporting.libraries.formula.operators
Class LesserOperator

java.lang.Object
  org.pentaho.reporting.libraries.formula.operators.AbstractCompareOperator
      org.pentaho.reporting.libraries.formula.operators.LesserOperator

All Implemented Interfaces:

Serializable, InfixOperator

public class LesserOperator
extends AbstractCompareOperator

Creation-Date: 31.10.2006, 16:34:11

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

LesserOperator()

Method Summary

int	getLevel()
boolean	isAssociative() Defines, whether the operation is associative.
boolean	isLeftOperation() Defines the bind-direction of the operator.
String	toString() returns the string representation of this operator.

Methods inherited from class org.pentaho.reporting.libraries.formula.operators.AbstractCompareOperator

evaluate

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LesserOperator

public LesserOperator()

Method Detail

getLevel

public int getLevel()

isLeftOperation

public boolean isLeftOperation()

Description copied from interface: InfixOperator

Defines the bind-direction of the operator. That direction defines, in which direction a sequence of equal operators is resolved.

Returns:

true, if the operation is left-binding, false if right-binding

isAssociative

public boolean isAssociative()

Defines, whether the operation is associative. For associative operations, the evaluation order does not matter, if the operation appears more than once in an expression, and therefore we can optimize them a lot better than non-associative operations (ie. merge constant parts and precompute them once).

Returns:

true, if the operation is associative, false otherwise

toString

public String toString()

returns the string representation of this operator.

Overrides:

toString in class Object

Returns:

string