org.pentaho.reporting.libraries.base.util
Class BulkDataUtility

java.lang.Object
  org.pentaho.reporting.libraries.base.util.BulkDataUtility

public class BulkDataUtility
extends java.lang.Object

A utility class to support reordering operations of arrays.

Author:

Thomas Morgner

Method Summary

static void	pushDown(java.lang.Object[] data, boolean[] selection) Pushes the selected elements down.
static void	pushDownSingleValue(java.lang.Object[] data, java.lang.Object selection) Pushes the selected element down.
static void	pushUp(java.lang.Object[] data, boolean[] selection) Pushes the selected elements up.
static void	pushUpSingleValue(java.lang.Object[] data, java.lang.Object selection) Pushes up the selected element.

Methods inherited from class java.lang.Object

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

Method Detail

pushUp

public static void pushUp(java.lang.Object[] data,
                          boolean[] selection)

Pushes the selected elements up. The elements are given in the data-array, while a selector on whether they should be pushed up is given in the selection array. The operation modifies the data-array.

Parameters:

data - the array holding the data-objects.

selection - the selection of which elements should be pushed up.

pushDown

public static void pushDown(java.lang.Object[] data,
                            boolean[] selection)

Pushes the selected elements down. The elements are given in the data-array, while a selector on whether they should be pushed down is given in the selection array. The operation modifies the data-array.

Parameters:

data - the array holding the data-objects.

selection - the selection of which elements should be pushed down.

pushUpSingleValue

public static void pushUpSingleValue(java.lang.Object[] data,
                                     java.lang.Object selection)

Pushes up the selected element. The element is compared via reference-equality, so equals() will not be called. It is assumed that the selected object is part of the data-collection. The operation modifies the data-array.

Parameters:

data - the array holding the data-objects.

selection - the selectioned object that be pushed up.

pushDownSingleValue

public static void pushDownSingleValue(java.lang.Object[] data,
                                       java.lang.Object selection)

Pushes the selected element down. The element is compared via reference-equality, so equals() will not be called. It is assumed that the selected object is part of the data-collection. The operation modifies the data-array.

Parameters:

data - the array holding the data-objects.

selection - the selectioned object that be pushed down.