com.metamatrix.common.actions
Class ExchangeDouble

java.lang.Object
  com.metamatrix.common.actions.ActionDefinition
      com.metamatrix.common.actions.TargetedActionDefinition
          com.metamatrix.common.actions.ExchangePrimitive
              com.metamatrix.common.actions.ExchangeDouble

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class ExchangeDouble
extends ExchangePrimitive

See Also:

Serialized Form

Constructor Summary

ExchangeDouble(java.lang.Object target, AttributeDefinition attribute, double previousValue, double newValue)

Method Summary

java.lang.Object	clone() Return a deep cloned instance of this object.
boolean	equals(java.lang.Object obj) Returns true if the specified object is semantically equal to this instance.
double	getNewValue()
double	getPreviousValue()
ActionDefinition	getUndoActionDefinition() Obtain the definition of the action that undoes this action definition.
java.lang.String	toString() Returns a string representing the current state of the object.

Methods inherited from class com.metamatrix.common.actions.ExchangePrimitive

getActionDescription

Methods inherited from class com.metamatrix.common.actions.ActionDefinition

getArguments, getAttributeCode, getAttributeDescription, getCreationTime, getCreationTimeMillis, getTarget, hasArguments, hasAttributeCode, hasTarget

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ExchangeDouble

public ExchangeDouble(java.lang.Object target,
                      AttributeDefinition attribute,
                      double previousValue,
                      double newValue)

Method Detail

getPreviousValue

public double getPreviousValue()

getNewValue

public double getNewValue()

toString

public java.lang.String toString()

Returns a string representing the current state of the object.

Overrides:

toString in class ActionDefinition

Returns:

the string representation of this instance.

clone

public java.lang.Object clone()

Return a deep cloned instance of this object. Subclasses must override this method.

Specified by:

clone in class ActionDefinition

Returns:

the object that is the clone of this instance.

equals

public boolean equals(java.lang.Object obj)

Returns true if the specified object is semantically equal to this instance. Note: this method is consistent with compareTo().

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object that this instance is to be compared to.

Returns:

whether the object is equal to this object.

getUndoActionDefinition

public ActionDefinition getUndoActionDefinition()

Obtain the definition of the action that undoes this action definition. If a modification action with the returned action definition is applied to the same target (when the state is such as that left by the original modification action), the resulting target will be left in a state that is identical to the target before either action were applied.

Specified by:

getUndoActionDefinition in class ActionDefinition

Returns:

the action definition that undoes this action definition.