org.apache.jackrabbit.spi.commons.batch
Class ConsolidatingChangeLog

java.lang.Object
  org.apache.jackrabbit.spi.commons.batch.ChangeLogImpl
      org.apache.jackrabbit.spi.commons.batch.ConsolidatingChangeLog

All Implemented Interfaces:

Batch, ChangeLog

public class ConsolidatingChangeLog
extends ChangeLogImpl

A ChangeLog implementation which does basic consolidation on its Operations. That is, cancelling operations are removed if possible. In general this is not possible across move operations. The individual CancelableOperation implementations document their behavior concerning cancellation.

Nested Class Summary

protected static interface	ConsolidatingChangeLog.CancelableOperation This class represent an Operation which can be cancelled by another operation or which cancels another operation.
protected static class	ConsolidatingChangeLog.CancelableOperations Factory for creating CancelableOperations.

Field Summary

Fields inherited from class org.apache.jackrabbit.spi.commons.batch.ChangeLogImpl

operations

Constructor Summary

ConsolidatingChangeLog()
Create a new instance of a consolidating change log.

Method Summary

void	addNode(NodeId parentId, Name nodeName, Name nodetypeName, String uuid)
protected void	addOperation(Operation op) Determines the cancellation behavior from the list of operations and the current operation op: When the current operation is cancelled by the last operation, the list of operations is not modified. When the current operation and the last operation cancel each other, the last operation is removed from the list of operations. When the last operation is cancelled by this operation, the last operation is removed from the list of operations and determination of cancellation starts from scratch. Otherwise add the current operation to the list of operations.
void	addProperty(NodeId parentId, Name propertyName, QValue value)
void	addProperty(NodeId parentId, Name propertyName, QValue[] values)
protected static Path	getPath(ItemId itemId) Determine the Path from an ItemId.
protected static Path	getPath(NodeId parentId, Name name) Create a Path from the NodeId of a parent and the Name of a child.
void	move(NodeId srcNodeId, NodeId destParentNodeId, Name destName)
void	remove(ItemId itemId)
void	reorderNodes(NodeId parentId, NodeId srcNodeId, NodeId beforeNodeId)
void	setMixins(NodeId nodeId, Name[] mixinNodeTypeNames)
void	setValue(PropertyId propertyId, QValue value)
void	setValue(PropertyId propertyId, QValue[] values)

Methods inherited from class org.apache.jackrabbit.spi.commons.batch.ChangeLogImpl

apply, equals, equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ConsolidatingChangeLog

public ConsolidatingChangeLog()

Create a new instance of a consolidating change log.

Method Detail

getPath

protected static Path getPath(NodeId parentId,
                              Name name)
                       throws RepositoryException

Create a Path from the NodeId of a parent and the Name of a child.

Parameters:

parentId - node id of the parent

name - name of the child

Returns:

the path of the item name

Throws:

RepositoryException

getPath

protected static Path getPath(ItemId itemId)

Determine the Path from an ItemId.

Parameters:

itemId -

Returns:

path of the item itemId

addNode

public void addNode(NodeId parentId,
                    Name nodeName,
                    Name nodetypeName,
                    String uuid)
             throws RepositoryException

Specified by:

addNode in interface Batch

Overrides:

addNode in class ChangeLogImpl

Throws:

RepositoryException

addProperty

public void addProperty(NodeId parentId,
                        Name propertyName,
                        QValue value)
                 throws RepositoryException

Specified by:

addProperty in interface Batch

Overrides:

addProperty in class ChangeLogImpl

Throws:

RepositoryException

addProperty

public void addProperty(NodeId parentId,
                        Name propertyName,
                        QValue[] values)
                 throws RepositoryException

Specified by:

addProperty in interface Batch

Overrides:

addProperty in class ChangeLogImpl

Throws:

RepositoryException

move

public void move(NodeId srcNodeId,
                 NodeId destParentNodeId,
                 Name destName)
          throws RepositoryException

Specified by:

move in interface Batch

Overrides:

move in class ChangeLogImpl

Throws:

RepositoryException

remove

public void remove(ItemId itemId)
            throws RepositoryException

Specified by:

remove in interface Batch

Overrides:

remove in class ChangeLogImpl

Throws:

RepositoryException

reorderNodes

public void reorderNodes(NodeId parentId,
                         NodeId srcNodeId,
                         NodeId beforeNodeId)
                  throws RepositoryException

Specified by:

reorderNodes in interface Batch

Overrides:

reorderNodes in class ChangeLogImpl

Throws:

RepositoryException

setMixins

public void setMixins(NodeId nodeId,
                      Name[] mixinNodeTypeNames)
               throws RepositoryException

Specified by:

setMixins in interface Batch

Overrides:

setMixins in class ChangeLogImpl

Throws:

RepositoryException

setValue

public void setValue(PropertyId propertyId,
                     QValue value)
              throws RepositoryException

Specified by:

setValue in interface Batch

Overrides:

setValue in class ChangeLogImpl

Throws:

RepositoryException

setValue

public void setValue(PropertyId propertyId,
                     QValue[] values)
              throws RepositoryException

Specified by:

setValue in interface Batch

Overrides:

setValue in class ChangeLogImpl

Throws:

RepositoryException

addOperation

protected void addOperation(Operation op)
                     throws RepositoryException

Determines the cancellation behavior from the list of operations and the current operation op:

• When the current operation is cancelled by the last operation, the list of operations is not modified.
• When the current operation and the last operation cancel each other, the last operation is removed from the list of operations.
• When the last operation is cancelled by this operation, the last operation is removed from the list of operations and determination of cancellation starts from scratch.
• Otherwise add the current operation to the list of operations.

Overrides:

addOperation in class ChangeLogImpl

Parameters:

op - Operation to add

Throws:

RepositoryException