edu.udo.cs.yale.operator.condition
Class LastInnerOperatorCondition

java.lang.Object
  edu.udo.cs.yale.operator.condition.LastInnerOperatorCondition

All Implemented Interfaces:

InnerOperatorCondition

public class LastInnerOperatorCondition
extends java.lang.Object
implements InnerOperatorCondition

This condition can be used to define a output condition for the last operator in a chain (e.g. the last operator of a chain must deliver a performance vector). This also means that all operators before can handle their predecessors output. It is therefore not necessary to add a SimpleChainInnerOperatorCondition additionally to this condition to the list of conditions.

Version:

$Id: LastInnerOperatorCondition.java,v 2.4 2006/03/21 15:35:42 ingomierswa Exp $

Author:

Ingo Mierswa

Field Summary

private java.lang.Class[]	mustDeliver The array of classes which must be delivered by the inner chain of operators described by this InnerOpDesc object.
private java.lang.Class[]	willGet

Constructor Summary

LastInnerOperatorCondition(java.lang.Class[] mustDeliver)
Creates an inner operator condition.

LastInnerOperatorCondition(java.lang.Class[] willGet, java.lang.Class[] mustDeliver)
Creates an inner operator condition.

Method Summary

java.lang.Class[]	checkIO(OperatorChain chain, java.lang.Class[] input) Checks if the condition is fulfilled in the given operator chain.
java.lang.String	toHTML() Returns a HTML string representation of this condition.

Methods inherited from class java.lang.Object

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

Field Detail

mustDeliver

private java.lang.Class[] mustDeliver

The array of classes which must be delivered by the inner chain of operators described by this InnerOpDesc object.

willGet

private java.lang.Class[] willGet

Constructor Detail

LastInnerOperatorCondition

public LastInnerOperatorCondition(java.lang.Class[] mustDeliver)

Creates an inner operator condition. The first operator in the chain gets the input of the operator chain. Each operator must be able to handle the output of the predecessor. The last operator must provide all classes in the given mustDeliver class array.

LastInnerOperatorCondition

public LastInnerOperatorCondition(java.lang.Class[] willGet,
                                  java.lang.Class[] mustDeliver)

Creates an inner operator condition. The first operator in the chain gets the input of the operator chain and additionally the given classes willGet. Each operator must be able to handle the output of the predecessor. The last operator must provide all classes in the given mustDeliver class array.

Method Detail

checkIO

public java.lang.Class[] checkIO(OperatorChain chain,
                                 java.lang.Class[] input)
                          throws IllegalInputException,
                                 WrongNumberOfInnerOperatorsException

Description copied from interface: InnerOperatorCondition

Checks if the condition is fulfilled in the given operator chain. Throws an exception if it is not fullfilled.

Specified by:

checkIO in interface InnerOperatorCondition

Throws:

IllegalInputException

WrongNumberOfInnerOperatorsException

toHTML

public java.lang.String toHTML()

Description copied from interface: InnerOperatorCondition

Returns a HTML string representation of this condition.

Specified by:

toHTML in interface InnerOperatorCondition