gnu.xquery.util
Class Reduce

java.lang.Object
  gnu.mapping.Procedure
      gnu.mapping.Procedure1
          gnu.xquery.util.Reduce

All Implemented Interfaces:

Named

Direct Known Subclasses:

MinMax

public class Reduce
extends Procedure1

Field Summary

protected Procedure	combiner
static Reduce	sum

Constructor Summary

Reduce(java.lang.String name, Procedure combiner)

Method Summary

java.lang.Object	apply1(java.lang.Object arg)
java.lang.Object	combine(java.lang.Object arg1, java.lang.Object arg2)

Methods inherited from class gnu.mapping.Procedure1

apply0, apply2, apply3, apply4, applyN, numArgs

Methods inherited from class gnu.mapping.Procedure

apply, apply, check0, check1, check2, check3, check4, checkArgCount, checkN, getName, getProperty, getSetter, getSymbol, match0, match1, match2, match3, match4, matchN, maxArgs, minArgs, name, removeProperty, set0, set1, setN, setName, setProperty, setProperty, setSetter, setSymbol, toString

Methods inherited from class java.lang.Object

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

Field Detail

sum

public static final Reduce sum

combiner

protected Procedure combiner

Constructor Detail

Reduce

public Reduce(java.lang.String name,
              Procedure combiner)

Method Detail

combine

public java.lang.Object combine(java.lang.Object arg1,
                                java.lang.Object arg2)
                         throws java.lang.Throwable

Throws:

java.lang.Throwable

apply1

public java.lang.Object apply1(java.lang.Object arg)
                        throws java.lang.Throwable

Specified by:

apply1 in class Procedure1

Throws:

java.lang.Throwable