org.pentaho.reporting.libraries.base.util

Class BulkDataUtility

java.lang.Object

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

public final class BulkDataUtility
extends Object

A utility class to support reordering operations of arrays.

Author:

Thomas Morgner

Method Summary

Methods

Modifier and Type	Method and Description
static void	pushDown(Object[] data, boolean[] selection) Pushes the selected elements down.
static void	pushDownSingleValue(Object[] data, Object selection) Pushes the selected element down.
static void	pushUp(Object[] data, boolean[] selection) Pushes the selected elements up.
static void	pushUpSingleValue(Object[] data, 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(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(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(Object[] data,
                     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(Object[] data,
                       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.