org.eclipse.emf.emfstore.internal.server.model.versioning.operations.util

Class ChangePackageUtil

java.lang.Object

org.eclipse.emf.emfstore.internal.server.model.versioning.operations.util.ChangePackageUtil

public final class ChangePackageUtil
extends Object

Change package helper class.

Author:

emueller

Method Summary

Modifier and Type	Method and Description
static int	countLeafOperations(AbstractOperation operation) Count all leaf operations of a single AbstractOperations.
static int	countLeafOperations(Collection<AbstractOperation> operations) Count all leaf operations of a collection of AbstractOperations.
static int	countLeafOperations(List<AbstractChangePackage> changePackages) Count all leaf operations of all operations contained in the given list of ChangePackages.
static int	countOperations(List<AbstractChangePackage> changePackages) Count all root operations within the given list of ChangePackages.
static AbstractChangePackage	createChangePackage(boolean useInMemoryChangePackage) Creates a new AbstractChangePackage depending on the client configuration behavior whether to create in-memory of file-based change packages.
static Iterator<ChangePackageEnvelope>	splitChangePackage(FileBasedChangePackage changePackage, int changePackageFragmentSize) Given a single change package, splits it into multiple fragments.

Methods inherited from class java.lang.Object

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

Method Detail

createChangePackage

public static AbstractChangePackage createChangePackage(boolean useInMemoryChangePackage)

Creates a new AbstractChangePackage depending on the client configuration behavior whether to create in-memory of file-based change packages.

Parameters:

useInMemoryChangePackage - whether an in-memory change package should be created

Returns:

the created change package

splitChangePackage

public static Iterator<ChangePackageEnvelope> splitChangePackage(FileBasedChangePackage changePackage,
                                                                 int changePackageFragmentSize)

Given a single change package, splits it into multiple fragments.

Parameters:

changePackage - the change package to be splitted

changePackageFragmentSize - the max number of operations a single fragment may consists of

Returns:

an iterator for the created fragments

countLeafOperations

public static int countLeafOperations(Collection<AbstractOperation> operations)

Count all leaf operations of a collection of AbstractOperations.

Parameters:

operations - a collection of operations

Returns:

the leaf operation count of all involved operations

countLeafOperations

public static int countLeafOperations(AbstractOperation operation)

Count all leaf operations of a single AbstractOperations.

Parameters:

operation - a single operation

Returns:

the leaf operation count of the given operation

countLeafOperations

public static int countLeafOperations(List<AbstractChangePackage> changePackages)

Count all leaf operations of all operations contained in the given list of ChangePackages.

Parameters:

changePackages - list of change packages

Returns:

the leaf operation count of all operations contained in the list of change packages

countOperations

public static int countOperations(List<AbstractChangePackage> changePackages)

Count all root operations within the given list of ChangePackages.

Parameters:

changePackages - list of change packages

Returns:

the root operation count of all change packages