Uses of Interface
com.bigdata.bop.IConstraint

Packages that use IConstraint

Package	Description
com.bigdata.bop	This package provides an API for query operators.
com.bigdata.bop.bset
com.bigdata.bop.constraint	This package provides implementations for operators which impose constraints on elements visited by some access path.
com.bigdata.bop.join
com.bigdata.bop.joinGraph	This package provides support for join graphs, query optimization, and generating full query plans from a join graph and the evaluation order identified by a query optimizer.
com.bigdata.bop.joinGraph.rto
com.bigdata.bop.solutions	This package provides distinct, sort, and aggregation operators.
com.bigdata.rdf.internal.constraints
com.bigdata.rdf.rules
com.bigdata.rdf.sparql.ast	This package contains an Abstract Syntax Tree which provides an intermediate translation target for SPARQL parsers.
com.bigdata.rdf.sparql.ast.eval
com.bigdata.relation.rule	This package includes an abstraction layer for rules.
com.bigdata.relation.rule.eval	This package supports rule evaluation.

Uses of IConstraint in com.bigdata.bop

Subinterfaces of IConstraint in com.bigdata.bop

Modifier and Type	Interface and Description
interface	IValueExpressionConstraint<X>

Fields in com.bigdata.bop declared as IConstraint

Modifier and Type	Field and Description
static IConstraint[]	IConstraint.EMPTY A zero length empty IConstraint array.

Methods in com.bigdata.bop that return IConstraint

Modifier and Type	Method and Description
static IConstraint[]	BOpUtility.concat(IConstraint[] a, IConstraint[] b) Combine two arrays of constraints.

Methods in com.bigdata.bop with parameters of type IConstraint

Modifier and Type	Method and Description
static IBindingSet	BOpContext.bind(IBindingSet left, IBindingSet right, IConstraint[] constraints, IVariable[] varsToKeep) Copy the values for variables from the source IBindingSet to the destination IBindingSet.
static boolean	BOpContext.bind(IPredicate<?> pred, IConstraint[] constraints, Object e, IBindingSet bindings) Deprecated.
static IConstraint[]	BOpUtility.concat(IConstraint[] a, IConstraint[] b) Combine two arrays of constraints.
static IConstraint[]	BOpUtility.concat(IConstraint[] a, IConstraint[] b) Combine two arrays of constraints.
static long	BOpUtility.copy(Iterator<IBindingSet[]> source, IBlockingBuffer<IBindingSet[]> sink, IBlockingBuffer<IBindingSet[]> sink2, IBindingSet mergeSolution, IVariable<?>[] selectVars, IConstraint[] constraints, BOpStats stats) Copy binding sets from the source to the sink(s).
static boolean	BOpUtility.isConsistent(IConstraint[] constraints, IBindingSet bindingSet) Check constraints.
void	BOpIdFactory.reserveIds(IConstraint[] constraints) Reserve ids used by the constraints for some predicate or join graph.

Uses of IConstraint in com.bigdata.bop.bset

Methods in com.bigdata.bop.bset that return IConstraint

Modifier and Type	Method and Description
IConstraint[]	CopyOp.constraints()
IConstraint	ConditionalRoutingOp.getCondition()

Uses of IConstraint in com.bigdata.bop.constraint

Classes in com.bigdata.bop.constraint that implement IConstraint

Modifier and Type	Class and Description
class	Constraint<X> Constraint wraps a BooleanValueExpression.

Methods in com.bigdata.bop.constraint that return IConstraint

Modifier and Type	Method and Description
static IConstraint	Constraint.wrap(BooleanValueExpression ve) Convenience method to generate a constraint from a value expression.

Uses of IConstraint in com.bigdata.bop.join

Fields in com.bigdata.bop.join declared as IConstraint

Modifier and Type	Field and Description
protected IConstraint[]	JVMHashJoinUtility.constraints The join constraints (optional).

Methods in com.bigdata.bop.join that return IConstraint

Modifier and Type	Method and Description
protected IConstraint[]	DistinctTermScanOp.constraints()
IConstraint[]	PipelineJoin.constraints()
protected IConstraint[]	FastRangeCountOp.constraints()
protected IConstraint[]	NestedLoopJoinOp.constraints()
IConstraint[]	IHashJoinUtility.getConstraints() The join constraints (optional).
IConstraint[]	JVMHashJoinUtility.getConstraints()
IConstraint[]	HTreeHashJoinUtility.getConstraints()

Methods in com.bigdata.bop.join with parameters of type IConstraint

Modifier and Type	Method and Description
long	HTreePipelinedHashJoinUtility.acceptAndOutputSolutions(UnsyncLocalOutputBuffer<IBindingSet> out, ICloseableIterator<IBindingSet[]> itr, NamedSolutionSetStats stats, IConstraint[] joinConstraints, PipelineOp subquery, IBindingSet[] bsFromBindingsSetSource, IVariable<?>[] projectInVars, IVariable<?> askVar, boolean isLastInvocation, int distinctProjectionBufferThreshold, int incomingBindingsBufferThreshold, BOpContext<IBindingSet> context)
long	PipelinedHashJoinUtility.acceptAndOutputSolutions(UnsyncLocalOutputBuffer<IBindingSet> out, ICloseableIterator<IBindingSet[]> itr, NamedSolutionSetStats stats, IConstraint[] joinConstraints, PipelineOp subquery, IBindingSet[] bsFromBindingsSetSource, IVariable<?>[] projectInVars, IVariable<?> askVar, boolean isLastInvocation, int distinctProjectionBufferThreshold, int incomingBindingsBufferThreshold, BOpContext<IBindingSet> context) AcceptAndOutputSolutions is a special method for building the hash index of the JVMPipelinedHashIndex, which accepts and immediately forwards relevant solutions (non-blocking index).
long	JVMPipelinedHashJoinUtility.acceptAndOutputSolutions(UnsyncLocalOutputBuffer<IBindingSet> out, ICloseableIterator<IBindingSet[]> itr, NamedSolutionSetStats stats, IConstraint[] joinConstraints, PipelineOp subquery, IBindingSet[] bsFromBindingsSetSource, IVariable<?>[] projectInVars, IVariable<?> askVar, boolean isLastInvocation, int distinctProjectionBufferThreshold, int incomingBindingsBufferThreshold, BOpContext<IBindingSet> context)
protected void	AbstractHashJoinUtilityTestCase.doHashJoinTest(JoinTypeEnum joinType, IVariable<?>[] joinVars, IVariable<?>[] selectVars, IConstraint[] constraints, List<IBindingSet> left, List<IBindingSet> right, IBindingSet[] expected) Test helper for required or optional join tests.
protected void	AbstractHashJoinUtilityTestCase.doMergeJoinTest(IConstraint[] constraints, IBindingSet[] expected, boolean optional, IHashJoinUtility first, IHashJoinUtility... others)
void	IHashJoinUtility.hashJoin2(ICloseableIterator<IBindingSet[]> leftItr, BOpStats stats, IBuffer<IBindingSet> outputBuffer, IConstraint[] constraints) Variant hash join method allows the caller to impose different constraints or additional constraints.
void	JVMHashJoinUtility.hashJoin2(ICloseableIterator<IBindingSet[]> leftItr, BOpStats stats, IBuffer<IBindingSet> outputBuffer, IConstraint[] constraints) Variant hash join method allows the caller to impose different constraints or additional constraints.
void	HTreeHashJoinUtility.hashJoin2(ICloseableIterator<IBindingSet[]> leftItr, BOpStats stats, IBuffer<IBindingSet> outputBuffer, IConstraint[] constraints)
void	HTreePipelinedHashJoinUtility.hashJoinAndEmit(IBindingSet[] chunk, BOpStats stats, IBuffer<IBindingSet> outputBuffer, IConstraint[] joinConstraints, IVariable<?> askVar) Executes the hash join for the chunk of solutions that is passed in over rightSolutions and outputs the solutions.
void	JVMPipelinedHashJoinUtility.hashJoinAndEmit(IBindingSet[] chunk, BOpStats stats, IBuffer<IBindingSet> outputBuffer, IConstraint[] joinConstraints, IVariable<?> askVar) Executes the hash join for the chunk of solutions that is passed in over rightSolutions and outputs the solutions.
void	IHashJoinUtility.mergeJoin(IHashJoinUtility[] others, IBuffer<IBindingSet> outputBuffer, IConstraint[] constraints, boolean optional) Perform an N-way merge join.
void	JVMHashJoinUtility.mergeJoin(IHashJoinUtility[] others, IBuffer<IBindingSet> outputBuffer, IConstraint[] constraints, boolean optional)
void	HTreeHashJoinUtility.mergeJoin(IHashJoinUtility[] others, IBuffer<IBindingSet> outputBuffer, IConstraint[] constraints, boolean optional) Perform an N-way merge join.

Uses of IConstraint in com.bigdata.bop.joinGraph

Methods in com.bigdata.bop.joinGraph that return IConstraint

Modifier and Type	Method and Description
IConstraint[]	PartitionedJoinGroup.getJoinGraphConstraints() Deprecated. The IConstraints to be applied to the IPredicates in the join graph.
IConstraint[]	PartitionedJoinGroup.getJoinGraphConstraints(int[] pathIds, boolean pathIsComplete) Deprecated. Return the set of constraints which should be attached to the last join in the given the join path.
static IConstraint[][]	PartitionedJoinGroup.getJoinGraphConstraints(IPredicate<?>[] path, IConstraint[] joinGraphConstraints, IVariable<?>[] knownBoundVars, boolean pathIsComplete) Deprecated. Given a join path, return the set of constraints to be associated with each join in that join path.
IConstraint[]	PartitionedJoinGroup.getTailPlanConstraints(int bopId) Deprecated. Return the set of IConstraints which should be evaluated when an identified predicate having SPARQL optional semantics is evaluated.

Methods in com.bigdata.bop.joinGraph with parameters of type IConstraint

Modifier and Type	Method and Description
static boolean	PartitionedJoinGroup.canJoinUsingConstraints(IPredicate<?>[] path, IPredicate<?> vertex, IConstraint[] constraints) Deprecated. Return true iff a predicate may be used to extend a join path on the basis of at least one variable which is shared either directly or via one or more constraints which may be attached to the predicate when it is added to the join path.
static IConstraint[][]	PartitionedJoinGroup.getJoinGraphConstraints(IPredicate<?>[] path, IConstraint[] joinGraphConstraints, IVariable<?>[] knownBoundVars, boolean pathIsComplete) Deprecated. Given a join path, return the set of constraints to be associated with each join in that join path.

Constructors in com.bigdata.bop.joinGraph with parameters of type IConstraint

Constructor and Description
PartitionedJoinGroup(IPredicate<?>[] sourcePreds, IConstraint[] constraints) Deprecated. Analyze a set of IPredicates representing "runFirst", optional joins, and non-optional joins which may be freely reordered together with a collection of IConstraints and partition them into a join graph and a tail plan.

Uses of IConstraint in com.bigdata.bop.joinGraph.rto

Methods in com.bigdata.bop.joinGraph.rto that return IConstraint

Modifier and Type	Method and Description
IConstraint[]	JoinGraph.getConstraints()

Methods in com.bigdata.bop.joinGraph.rto with parameters of type IConstraint

Modifier and Type	Method and Description
Path	Path.addEdge(QueryEngine queryEngine, JoinGraph joinGraph, int limit, Vertex vnew, IConstraint[] constraints, boolean pathIsComplete) Add an edge to a path, computing the estimated cardinality of the new path, and returning the new path.
static EdgeSample	Path.cutoffJoin(QueryEngine queryEngine, JoinGraph joinGraph, int limit, IPredicate<?>[] path, IConstraint[] constraints, boolean pathIsComplete, SampleBase sourceSample) Cutoff join of the last vertex in the join path.

Uses of IConstraint in com.bigdata.bop.solutions

Methods in com.bigdata.bop.solutions that return IConstraint

Modifier and Type	Method and Description
IConstraint[]	IGroupByRewriteState.getHaving2() A modified version of the original HAVING expression which has the same semantics (and null iff the original was null or empty).
IConstraint[]	GroupByRewriter.getHaving2() A modified version of the original HAVING expression which has the same semantics (and null iff the original was null or empty).
IConstraint[]	GroupByState.getHavingClause()
IConstraint[]	IGroupByState.getHavingClause() Optional constraints applied to the aggregated solutions.
static IConstraint	GroupByRewriter.rewrite(IConstraint e, IVariableFactory f, LinkedHashMap<IAggregate<?>,IVariable<?>> aggExpr) Rewrite an IConstraint.

Methods in com.bigdata.bop.solutions with parameters of type IConstraint

Modifier and Type	Method and Description
protected GroupByOp	TestPipelinedAggregationOp.newFixture(IValueExpression<?>[] select, IValueExpression<?>[] groupBy, IConstraint[] having)
protected GroupByOp	TestMemoryGroupByOp.newFixture(IValueExpression<?>[] select, IValueExpression<?>[] groupBy, IConstraint[] having)
protected abstract GroupByOp	AbstractAggregationTestCase.newFixture(IValueExpression<?>[] select, IValueExpression<?>[] groupBy, IConstraint[] having) Factory for GroupByOp to be tested.
static IConstraint	GroupByRewriter.rewrite(IConstraint e, IVariableFactory f, LinkedHashMap<IAggregate<?>,IVariable<?>> aggExpr) Rewrite an IConstraint.

Constructors in com.bigdata.bop.solutions with parameters of type IConstraint

Constructor and Description
GroupByState(IValueExpression<?>[] select, IValueExpression<?>[] groupBy, IConstraint[] having)

Uses of IConstraint in com.bigdata.rdf.internal.constraints

Classes in com.bigdata.rdf.internal.constraints that implement IConstraint

Modifier and Type	Class and Description
class	ProjectedConstraint This class implements 'AS' in a projection as found in both subselects and bind, e.g.
class	SPARQLConstraint<X extends XSDBooleanIV> BOpConstraint that wraps a EBVBOp, which itself computes the effective boolean value of an IValueExpression.
class	TryBeforeMaterializationConstraint This is useful when a solution can be filtered out before it goes through the materialization pipeline.

Constructors in com.bigdata.rdf.internal.constraints with parameters of type IConstraint

Constructor and Description
TryBeforeMaterializationConstraint(IConstraint x)

Uses of IConstraint in com.bigdata.rdf.rules

Constructors in com.bigdata.rdf.rules with parameters of type IConstraint

Constructor and Description
AbstractRuleDistinctTermScan(String name, SPOPredicate head, SPOPredicate[] body, IConstraint[] constraints)
AbstractRuleFastClosure_11_13(String name, SPOPredicate head, SPOPredicate[] body, IConstraint[] constraints)

Uses of IConstraint in com.bigdata.rdf.sparql.ast

Methods in com.bigdata.rdf.sparql.ast that return IConstraint

Modifier and Type	Method and Description
IConstraint[]	HavingNode.getConstraints() Return the IConstraints for this HavingNode.

Methods in com.bigdata.rdf.sparql.ast with parameters of type IConstraint

Modifier and Type	Method and Description
static boolean	StaticAnalysis.requiresMaterialization(IConstraint c) Use the INeedsMaterialization interface to find and collect variables that need to be materialized for this constraint.

Uses of IConstraint in com.bigdata.rdf.sparql.ast.eval

Methods in com.bigdata.rdf.sparql.ast.eval that return IConstraint

Modifier and Type	Method and Description
protected static IConstraint[]	AST2BOpFilters.getJoinConstraints(Collection<IConstraint> constraints, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization) Partition the constraints for a join into those which can (or might) be able to run attached to that join and those which must (or might) need to materialize some variables before they can be evaluated.
protected static IConstraint[]	AST2BOpFilters.getJoinConstraints2(Collection<IConstraint> constraints, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization, boolean conditionalRouting) Partition the constraints for a join into those which can (or might) be able to run attached to that join and those which must (or might) need to materialize some variables before they can be evaluated.

Methods in com.bigdata.rdf.sparql.ast.eval that return types with arguments of type IConstraint

Modifier and Type	Method and Description
protected static List<IConstraint>	AST2BOpFilters.getJoinConstraints(IJoinNode joinNode) Convert the attached join filters into a list of IConstraints.

Methods in com.bigdata.rdf.sparql.ast.eval with parameters of type IConstraint

Modifier and Type	Method and Description
static EdgeSample	AST2BOpRTO.cutoffJoin(QueryEngine queryEngine, JoinGraph joinGraph, int limit, IPredicate<?>[] predicates, IConstraint[] constraints, boolean pathIsComplete, SampleBase sourceSample) Cutoff join of the last vertex in the join path.

Method parameters in com.bigdata.rdf.sparql.ast.eval with type arguments of type IConstraint

Modifier and Type	Method and Description
protected static PipelineOp	AST2BOpFilters.addMaterializationSteps3(PipelineOp left, Set<IVariable<?>> doneSet, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization, Properties queryHints, AST2BOpContext ctx) For each filter which requires materialization steps, add the materializations steps to the pipeline and then add the filter to the pipeline.
protected static PipelineOp	AST2BOpFilters.addNonConditionalMaterializationSteps(PipelineOp left, Set<IVariable<?>> doneSet, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization, Long cutoffLimit, Properties queryHints, AST2BOpContext ctx) The RTO requires that we do not reorder solutions.
protected static IConstraint[]	AST2BOpFilters.getJoinConstraints(Collection<IConstraint> constraints, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization) Partition the constraints for a join into those which can (or might) be able to run attached to that join and those which must (or might) need to materialize some variables before they can be evaluated.
protected static IConstraint[]	AST2BOpFilters.getJoinConstraints(Collection<IConstraint> constraints, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization) Partition the constraints for a join into those which can (or might) be able to run attached to that join and those which must (or might) need to materialize some variables before they can be evaluated.
protected static IConstraint[]	AST2BOpFilters.getJoinConstraints2(Collection<IConstraint> constraints, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization, boolean conditionalRouting) Partition the constraints for a join into those which can (or might) be able to run attached to that join and those which must (or might) need to materialize some variables before they can be evaluated.
protected static IConstraint[]	AST2BOpFilters.getJoinConstraints2(Collection<IConstraint> constraints, Map<IConstraint,Set<IVariable<IV>>> needsMaterialization, boolean conditionalRouting) Partition the constraints for a join into those which can (or might) be able to run attached to that join and those which must (or might) need to materialize some variables before they can be evaluated.
static PipelineOp	AST2BOpJoins.join(PipelineOp left, Predicate pred, Set<IVariable<?>> doneSet, Collection<IConstraint> constraints, Long cutoffLimit, Properties queryHints, AST2BOpContext ctx) Add a join for a statement pattern.

Uses of IConstraint in com.bigdata.relation.rule

Methods in com.bigdata.relation.rule that return IConstraint

Modifier and Type	Method and Description
IConstraint	IRule.getConstraint(int index) Return the constraint at the given index.
IConstraint	Rule.getConstraint(int index)

Methods in com.bigdata.relation.rule that return types with arguments of type IConstraint

Modifier and Type	Method and Description
Iterator<IConstraint>	IRule.getConstraints() The optional constraints.
Iterator<IConstraint>	Rule.getConstraints()

Methods in com.bigdata.relation.rule with parameters of type IConstraint

Modifier and Type	Method and Description
IRule<E>	IRule.specialize(IBindingSet bindingSet, IConstraint[] constraints) Specialize a rule - the name of the new rule will be derived from the name of the old rule with an appended single quote to indicate that it is a derived variant.
IRule<E>	Rule.specialize(IBindingSet bindingSet, IConstraint[] constraints)
IRule<E>	IRule.specialize(String name, IBindingSet bindingSet, IConstraint[] constraints) Specialize a rule by binding zero or more variables and adding zero or more constraints.
IRule<E>	Rule.specialize(String name, IBindingSet bindingSet, IConstraint[] constraints)

Constructors in com.bigdata.relation.rule with parameters of type IConstraint

Constructor and Description
Rule(String name, IPredicate head, IPredicate[] tail, IConstraint[] constraints) Rule ctor.
Rule(String name, IPredicate head, IPredicate[] tail, IQueryOptions queryOptions, IConstraint[] constraints) Rule ctor.
Rule(String name, IPredicate head, IPredicate[] tail, IQueryOptions queryOptions, IConstraint[] constraints, IBindingSet constants, IRuleTaskFactory taskFactory)
Rule(String name, IPredicate head, IPredicate[] tail, IQueryOptions queryOptions, IConstraint[] constraints, IBindingSet constants, IRuleTaskFactory taskFactory, IVariable[] requiredVars) Fully specified ctor.

Uses of IConstraint in com.bigdata.relation.rule.eval

Methods in com.bigdata.relation.rule.eval with parameters of type IConstraint

Modifier and Type	Method and Description
boolean	AbstractJoinNexus.bind(IPredicate<?> pred, IConstraint[] constraints, Object e, IBindingSet bindings)
boolean	IJoinNexus.bind(IPredicate<?> pred, IConstraint[] constraints, Object e, IBindingSet bindings) Binds variables from a visited element.