Package org.modeshape.jcr.query.engine.process

When executing a query, the processing phase involves "running" each branch in the optimized query plan, determining the set of nodes that satisfies each branch, and then joining each branch into a single result.

See: Description

Interface Summary

Interface	Description
BufferedRows.BufferedRow
BufferedRows.BufferedRowFactory<T extends BufferedRows.BufferedRow>
JoinSequence.BatchFactory	A factory for batches.
JoinSequence.RangeProducer<K>
RestartableSequence.BatchSequence

Class Summary

Class	Description
AbstractNodeKeysSequence	The base class of a NodeSequence implementation which extracts node keys from 2 different sequences and delegates to subclasses the behavior of deciding which batches to return based on which node keys are present/absent.
BufferedRows
BufferedRows.DoubleNodeRow
BufferedRows.DoubleNodeRowSerializer
BufferedRows.MultiNodeRow
BufferedRows.MultiNodeRowSerializer
BufferedRows.QuadNodeRow
BufferedRows.QuadNodeRowSerializer
BufferedRows.SingleNodeRow
BufferedRows.SingleNodeRowSerializer
BufferedRows.TripleNodeRow
BufferedRows.TripleNodeRowSerializer
BufferingSequence
CountableSequence	A sequence that will return an accurate size for a given NodeSequence by buffering and counting the nodes and then accessing the buffered sequence.
DelegatingSequence
DependentQuery	A node sequence implementation that performs an independent query to find results that are required for a dependent query.
DistinctSequence	A NodeSequence that wraps another NodeSequence and returns only those rows that are seen for the first time.
ExceptSequence	A AbstractNodeKeysSequence implementation which performs an EXCEPT operation between 2 other sequences, keeping only instances which don't have a corresponding value on the right.
HashJoinSequence	A NodeSequence implementation that performs an equijoin of two delegate sequences.
IntersectSequence	A AbstractNodeKeysSequence implementation which performs an INTERSECT operation between 2 other sequences, keeping only instances which have the same unique value in both sequences.
JoinSequence	A NodeSequence implementation that performs a join of two delegate sequences.
JoinSequence.Range<K>
PartialMemoryCountableSequence	A sequence that will return an accurate size for a given NodeSequence by buffering and counting the nodes and then accessing the buffered sequence.
RestartableSequence	A NodeSequence that captures the buffers as they are used (or all at once) so that the sequence can be restarted.
SecureSequence	A NodeSequence implementation which only returns nodes on which an existing query context has ModeShapePermissions.READ permissions.
SortingSequence

Package org.modeshape.jcr.query.engine.process Description

When executing a query, the processing phase involves "running" each branch in the optimized query plan, determining the set of nodes that satisfies each branch, and then joining each branch into a single result. This package defines several NodeSequence implementations that perform various aspects of this processing.