org.modeshape.jcr.query.engine.process

Class SecureSequence

java.lang.Object

org.modeshape.jcr.query.NodeSequence

org.modeshape.jcr.query.engine.process.DelegatingSequence

org.modeshape.jcr.query.engine.process.SecureSequence

public class SecureSequence
extends DelegatingSequence

A NodeSequence implementation which only returns nodes on which an existing query context has ModeShapePermissions.READ permissions.

Nested Class Summary

Nested classes/interfaces inherited from class org.modeshape.jcr.query.NodeSequence

NodeSequence.AlternateSizeBatch, NodeSequence.Batch, NodeSequence.LimitBatch, NodeSequence.MultiWidthBatch, NodeSequence.Restartable, NodeSequence.RowAccessor, NodeSequence.RowFilter, NodeSequence.SingleWidthBatch

Field Summary

Fields

Modifier and Type	Field and Description
protected JcrQueryContext	context

Fields inherited from class org.modeshape.jcr.query.engine.process.DelegatingSequence

delegate

Fields inherited from class org.modeshape.jcr.query.NodeSequence

LOGGER, NO_PASS_ROW_FILTER, PASS_ROW_FILTER

Constructor Summary

Constructors

Constructor and Description
SecureSequence(NodeSequence delegate, JcrQueryContext context) Creates a new secure sequence over an existing sequence.

Method Summary

Modifier and Type	Method and Description
long	getRowCount() Get the number of rows in this sequence.
NodeSequence.Batch	nextBatch() Get the next batch of NodeKey instances.
String	toString()

Methods inherited from class org.modeshape.jcr.query.engine.process.DelegatingSequence

close, isEmpty, width

Methods inherited from class org.modeshape.jcr.query.NodeSequence

append, batchFilteredWith, batchOf, batchOf, batchOf, batchOfKeys, batchOfKeys, batchOfKeys, batchOfKeys, batchWithCount, copy, emptyBatch, emptySequence, filter, keyFor, limit, limit, merging, requireBoth, requireEither, skip, slice, slicingBatch, withBatch, withBatches, withBatches, withNode, withNodeKeys, withNodeKeys, withNodeKeys, withNodeKeys, withNodes, withNodes

Methods inherited from class java.lang.Object

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

Field Detail

context

protected final JcrQueryContext context

Constructor Detail

SecureSequence

public SecureSequence(NodeSequence delegate,
                      JcrQueryContext context)

Creates a new secure sequence over an existing sequence.

Parameters:

delegate - a NodeSequence which is being wrapped; may not be null

context - the JcrQueryContext for which the permissions are checked.

Method Detail

nextBatch

public NodeSequence.Batch nextBatch()

Description copied from class: NodeSequence

Get the next batch of NodeKey instances.

Overrides:

nextBatch in class DelegatingSequence

Returns:

the next batch, or null if there are no more batches.

getRowCount

public long getRowCount()

Description copied from class: NodeSequence

Get the number of rows in this sequence. If the actual number of rows is not known, this method returns -1.

Overrides:

getRowCount in class DelegatingSequence

Returns:

the number of rows, or -1 if the number of rows is not known or cannot be found with significant overhead

toString

public String toString()

Overrides:

toString in class Object