edu.rice.hj.runtime.util

Class ValueWrapper<ValueType>

java.lang.Object

edu.rice.hj.runtime.util.ValueWrapper<ValueType>

Type Parameters:

ValueType - The type of the value to wrap

public class ValueWrapper<ValueType>
extends Object

A ValueWrapper represents a value of type ValueType. It also associates an exception with the computation of the value. If such an exception is present, then the computation had failed while attempting to compute the value and the failed() method returns true.

Author:

Shams Imam (shams@rice.edu)

Constructor Summary

Constructors

Constructor and Description
ValueWrapper(ValueType wrapped) Constructor for ValueWrapper.
ValueWrapper(ValueType wrapped, Exception ex) Constructor for ValueWrapper.

Method Summary

Modifier and Type	Method and Description
boolean	failed() Return true if there was an exception while computing the value.
ValueType	wrapped() wrapped.

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueWrapper

public ValueWrapper(ValueType wrapped)

Constructor for ValueWrapper.

Parameters:

wrapped - The value to wrap

ValueWrapper

public ValueWrapper(ValueType wrapped,
                    Exception ex)

Constructor for ValueWrapper.

Parameters:

wrapped - The value to wrap

ex - The exception while trying to compute the result

Method Detail

wrapped

public final ValueType wrapped()

wrapped.

Returns:

the wrapped value

failed

public boolean failed()

Return true if there was an exception while computing the value.

Returns:

true if there was an exception while computing the value.