lumis.util

Class CollectionExecutor<T>

java.lang.Object

lumis.util.CollectionExecutor<T>

Type Parameters:

T - the type of the collection elements.

public class CollectionExecutor<T>
extends Object

Utility used to process collections in blocks.

Currently each block is fixed in a maximum size, the default value is 1000 elements.

Since:

4.2.2.090330

Version:

$Revision: 23745 $ $Date: 2020-04-07 23:09:15 +0000 (Tue, 07 Apr 2020) $

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CollectionExecutor.IIterationCommand<T> Interface that is implemented to provide the command for executing a block of a collection.

Constructor Summary

Constructors

Constructor and Description
CollectionExecutor(Collection<? extends T> items) Creates a new executor.
CollectionExecutor(Collection<? extends T> items, int iterationBlock) Creates a new executor.

Method Summary

Modifier and Type	Method and Description
static <T> void	execute(Collection<T> collection, CollectionExecutor.IIterationCommand<T> command) Executes a command on the collection.
void	execute(CollectionExecutor.IIterationCommand<T> command) Executes a command on the collection in this executor.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionExecutor

public CollectionExecutor(Collection<? extends T> items)

Creates a new executor.

Parameters:

items - the collection to be processed in blocks.

Since:

4.2.2.090330

CollectionExecutor

public CollectionExecutor(Collection<? extends T> items,
                          int iterationBlock)

Creates a new executor.

Parameters:

items - the collection to be processed in blocks.

iterationBlock - the maximum number of element in each iteration that calls CollectionExecutor.IIterationCommand.execute(List).

Since:

12.3.0

Method Detail

execute

public void execute(CollectionExecutor.IIterationCommand<T> command)
             throws PortalException

Executes a command on the collection in this executor. CollectionExecutor.IIterationCommand.execute(List) is called multiple times, given as argument a sublist of the collection in this executor, in the same order as the collection's iterator.

Parameters:

command - the command to be executed.

Throws:

PortalException

Since:

4.2.2.090330

execute

public static <T> void execute(Collection<T> collection,
                               CollectionExecutor.IIterationCommand<T> command)
                        throws PortalException

Executes a command on the collection. CollectionExecutor.IIterationCommand.execute(List) is called multiple times, given as argument a sublist of the collection in this executor, in the same order as the collection's iterator.

Parameters:

collection - the collection to be processed in blocks.

command - the command to be executed.

Throws:

PortalException

Since:

10.0.0