Uses of Class
org.modeshape.jcr.query.process.ProcessingComponent

Packages that use ProcessingComponent

Package	Description
org.modeshape.jcr.query.lucene	The core query engine, which currently uses Lucene for indexing and raw queries, and the Hibernate Search engine (which does not depend on or use Hibernate Core or JPA) for updating and querying the Lucene indexes.
org.modeshape.jcr.query.process	This package defines the QueryProcessor interface, which is responsible for constructing for each query a tree of ProcessingComponent objects that each are responsible for processing a specific aspect of the query and returning the tuples to the parent component.

Uses of ProcessingComponent in org.modeshape.jcr.query.lucene

Subclasses of ProcessingComponent in org.modeshape.jcr.query.lucene

Modifier and Type	Class and Description
protected static class	LuceneQueryEngine.LuceneAccessQuery The component that is created to represent a single access query and, when executed, transforms that access query into a single Lucene query and issues it against Lucene.

Methods in org.modeshape.jcr.query.lucene that return ProcessingComponent

Modifier and Type	Method and Description
protected ProcessingComponent	LuceneQueryEngine.LuceneQueryProcessor.createAccessComponent(QueryCommand originalQuery, QueryContext context, PlanNode accessNode, QueryResults.Columns resultColumns, LuceneProcessingContext processingContext)

Uses of ProcessingComponent in org.modeshape.jcr.query.process

Subclasses of ProcessingComponent in org.modeshape.jcr.query.process

Modifier and Type	Class and Description
class	AbstractAccessComponent A reusable base class for ProcessingComponent implementations that does everything except obtain the correct QueryResults.Location objects for the query results.
class	DelegatingComponent
class	DependentQueryComponent A ProcessingComponent that executes a dependent query node by first executing the left component and then executing the right component.
class	DistinctComponent A ProcessingComponent implementation that removes duplicates.
class	DistinctOfSortedComponent An efficient ProcessingComponent that removes duplicates from an already-sorted set of results.
class	ExceptComponent
class	IntersectComponent
class	JoinComponent
class	LimitComponent
class	MergeJoinComponent Create a processing component that performs a merge-join algorithm.
class	NestedLoopJoinComponent
class	NoResultsComponent
class	ProjectComponent A ProcessingComponent implementation that performs a PROJECT operation to reduce the columns that appear in the results.
class	SelectComponent
class	SetOperationComponent
class	SortLocationsComponent
class	SortValuesComponent A ProcessingComponent implementation that performs a PROJECT operation to reduce the columns that appear in the results.
class	UnionComponent

Methods in org.modeshape.jcr.query.process that return ProcessingComponent

Modifier and Type	Method and Description
protected abstract ProcessingComponent	QueryProcessor.createAccessComponent(QueryCommand originalQuery, QueryContext context, PlanNode accessNode, QueryResults.Columns resultColumns, ProcessingContextType processingContext) Create the ProcessingComponent that processes a single PlanNode.Type.ACCESS branch of a query plan.
protected ProcessingComponent	QueryProcessor.createComponent(QueryCommand originalQuery, QueryContext context, PlanNode node, QueryResults.Columns columns, ProcessingContextType processingContext) Method that is called to build up the ProcessingComponent objects that correspond to the optimized query plan.
protected ProcessingComponent	DelegatingComponent.delegate() Get the delegate processor.
protected ProcessingComponent	JoinComponent.left() Get the processing component that serves as the left side of the join.
protected ProcessingComponent	DependentQueryComponent.left() Get the processing component that serves as the left side of the join.
protected ProcessingComponent	JoinComponent.right() Get the processing component that serves as the right side of the join.
protected ProcessingComponent	DependentQueryComponent.right() Get the processing component that serves as the right side of the join.

Methods in org.modeshape.jcr.query.process that return types with arguments of type ProcessingComponent

Modifier and Type	Method and Description
protected Iterable<ProcessingComponent>	SetOperationComponent.sources()
protected static Iterable<ProcessingComponent>	SetOperationComponent.wrapWithLocationOrdering(Iterable<ProcessingComponent> sources, boolean alreadySorted) The sources' results must be sorted before the intersection can be computed.

Methods in org.modeshape.jcr.query.process with parameters of type ProcessingComponent

Modifier and Type	Method and Description
protected static Comparator<Object>	JoinComponent.comparatorFor(QueryContext context, ProcessingComponent left, ProcessingComponent right, JoinCondition condition) Create a Comparable that can be used to compare the values required to evaluate the supplied join condition.
protected static JoinComponent.Joinable	JoinComponent.joinableFor(ProcessingComponent left, ProcessingComponent right, JoinCondition condition) Create a JoinComponent.ValueSelector that obtains the value required to use the supplied join condition.
protected static JoinComponent.ValueSelector	JoinComponent.valueSelectorFor(ProcessingComponent source, JoinCondition condition) Create a JoinComponent.ValueSelector that obtains the value required to use the supplied join condition.

Method parameters in org.modeshape.jcr.query.process with type arguments of type ProcessingComponent

Modifier and Type	Method and Description
protected static boolean	SetOperationComponent.unionCompatible(QueryResults.Columns columns, Iterable<ProcessingComponent> sources)
protected static Iterable<ProcessingComponent>	SetOperationComponent.wrapWithLocationOrdering(Iterable<ProcessingComponent> sources, boolean alreadySorted) The sources' results must be sorted before the intersection can be computed.

Constructors in org.modeshape.jcr.query.process with parameters of type ProcessingComponent

Constructor and Description
DelegatingComponent(ProcessingComponent delegate)
DelegatingComponent(ProcessingComponent delegate, QueryResults.Columns overridingColumns)
DependentQueryComponent(QueryContext context, ProcessingComponent left, ProcessingComponent right, String leftVariableName, String rightVariableName)
DistinctComponent(ProcessingComponent delegate)
JoinComponent(QueryContext context, ProcessingComponent left, ProcessingComponent right, JoinCondition condition, JoinType joinType)
LimitComponent(ProcessingComponent delegate, Limit limit)
MergeJoinComponent(QueryContext context, ProcessingComponent left, ProcessingComponent right, ChildNodeJoinCondition condition, JoinType joinType)
MergeJoinComponent(QueryContext context, ProcessingComponent left, ProcessingComponent right, EquiJoinCondition condition, JoinType joinType)
MergeJoinComponent(QueryContext context, ProcessingComponent left, ProcessingComponent right, SameNodeJoinCondition condition, JoinType joinType)
NestedLoopJoinComponent(QueryContext context, ProcessingComponent left, ProcessingComponent right, JoinCondition condition, JoinType joinType)
ProjectComponent(ProcessingComponent delegate, List<Column> columns)
SelectComponent(ProcessingComponent delegate, Constraint constraint, Map<String,Object> variables) Create a SELECT processing component that pass those tuples that satisfy the supplied constraint.
SortLocationsComponent(ProcessingComponent delegate)
SortLocationsComponent(ProcessingComponent delegate, Comparator<Object[]> sortingComparator)
SortValuesComponent(ProcessingComponent delegate, List<Ordering> orderings, Map<SelectorName,SelectorName> sourceNamesByAlias)

Constructor parameters in org.modeshape.jcr.query.process with type arguments of type ProcessingComponent

Constructor and Description
ExceptComponent(QueryContext context, QueryResults.Columns columns, Iterable<ProcessingComponent> sources, boolean alreadySorted, boolean all)
IntersectComponent(QueryContext context, QueryResults.Columns columns, Iterable<ProcessingComponent> sources, boolean alreadySorted, boolean all)
SetOperationComponent(QueryContext context, QueryResults.Columns columns, Iterable<ProcessingComponent> sources, boolean alreadySorted, boolean all)
UnionComponent(QueryContext context, QueryResults.Columns columns, Iterable<ProcessingComponent> sources, boolean alreadySorted, boolean all)