er.extensions.foundation
Class ERXArrayUtilities.FlattenOperator

java.lang.Object
  er.extensions.foundation.ERXArrayUtilities.FlattenOperator

All Implemented Interfaces:

NSArray.Operator

Enclosing class:

ERXArrayUtilities

public static class ERXArrayUtilities.FlattenOperator
extends Object

Define an NSArray.Operator for the key flatten.

This allows for key value paths like:

myArray.valueForKey("@flatten");

Which in this case would return myArray flattened if myArray is an NSArray of NSArrays (of NSArrays etc).

Constructor Summary

ERXArrayUtilities.FlattenOperator()
public empty constructor

Method Summary

Object	compute(NSArray array, String keypath) Flattens the given array.
NSArray	contents(NSArray array, String keypath)

Methods inherited from class java.lang.Object

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

Constructor Detail

ERXArrayUtilities.FlattenOperator

public ERXArrayUtilities.FlattenOperator()

public empty constructor

Method Detail

compute

public Object compute(NSArray array,
                      String keypath)

Flattens the given array.

Parameters:

array - array to be filtered.

keypath - name of fetch specification.

Returns:

immutable filtered array.

contents

public NSArray contents(NSArray array,
                        String keypath)