Module org.apache.jena.arq

Package org.apache.jena.sparql.engine

Class ExecutionContext

java.lang.Object

org.apache.jena.sparql.engine.ExecutionContext

All Implemented Interfaces:

FunctionEnv

public class ExecutionContext
extends Object
implements FunctionEnv

Constructor Summary

Constructors

Constructor	Description
ExecutionContext(DatasetGraph dataset)	Setup with defaults of global settings
ExecutionContext(DatasetGraph dataset, OpExecutorFactory factory)	Setup with defaults of global settings but explicit OpExecutor factory.
ExecutionContext(ExecutionContext other)	Clone
ExecutionContext(ExecutionContext other, Graph activeGraph)	Clone and change active graph - shares tracking
ExecutionContext(Context params, Graph activeGraph, DatasetGraph dataset, OpExecutorFactory factory)

Method Summary

Modifier and Type	Method	Description
void	closedIterator(QueryIterator qIter)
Graph	getActiveGraph()	Return the active graph (the one matching is against at this point in the query.
AtomicBoolean	getCancelSignal()
Context	getContext()	Return the context for this function call
DatasetGraph	getDataset()	Return the dataset for the query
OpExecutorFactory	getExecutor()
Iterator<QueryIterator>	listAllIterators()
Iterator<QueryIterator>	listOpenIterators()
void	openIterator(QueryIterator qIter)
void	setExecutor(OpExecutorFactory executor)	Setter for the policy for algebra expression evaluation - use with care

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ExecutionContext

public ExecutionContext(ExecutionContext other)

Clone

ExecutionContext

public ExecutionContext(ExecutionContext other,
 Graph activeGraph)

Clone and change active graph - shares tracking

ExecutionContext

public ExecutionContext(DatasetGraph dataset)

Setup with defaults of global settings

ExecutionContext

public ExecutionContext(DatasetGraph dataset,
 OpExecutorFactory factory)

Setup with defaults of global settings but explicit OpExecutor factory.

ExecutionContext

public ExecutionContext(Context params,
 Graph activeGraph,
 DatasetGraph dataset,
 OpExecutorFactory factory)

Method Details

getContext

public Context getContext()

Description copied from interface: FunctionEnv

Return the context for this function call

Specified by:

getContext in interface FunctionEnv

getCancelSignal

public AtomicBoolean getCancelSignal()

openIterator

public void openIterator(QueryIterator qIter)

closedIterator

public void closedIterator(QueryIterator qIter)

listOpenIterators

public Iterator<QueryIterator> listOpenIterators()

listAllIterators

public Iterator<QueryIterator> listAllIterators()

getExecutor

public OpExecutorFactory getExecutor()

setExecutor

public void setExecutor(OpExecutorFactory executor)

Setter for the policy for algebra expression evaluation - use with care

getDataset

public DatasetGraph getDataset()

Description copied from interface: FunctionEnv

Return the dataset for the query

Specified by:

getDataset in interface FunctionEnv

getActiveGraph

public Graph getActiveGraph()

Return the active graph (the one matching is against at this point in the query. May be null if unknown or not applicable - for example, doing quad store access or when sorting

Specified by:

getActiveGraph in interface FunctionEnv