Module org.apache.jena.arq

Package org.apache.jena.sparql.algebra.optimize

Class TransformPropertyFunction

java.lang.Object

org.apache.jena.sparql.algebra.TransformCopy

org.apache.jena.sparql.algebra.optimize.TransformPropertyFunction

All Implemented Interfaces:

Transform

public class TransformPropertyFunction
extends TransformCopy

Rewrite to replace a property function property with the call to the property function implementation

Field Summary

Fields inherited from class org.apache.jena.sparql.algebra.TransformCopy

COPY_ALWAYS, COPY_ONLY_ON_CHANGE

Constructor Summary

Constructors

Constructor	Description
TransformPropertyFunction(Context context)

Method Summary

Modifier and Type	Method	Description
Op	transform(OpBGP opBGP)
Op	transform(OpTriple opTriple)
static Op	transform(Op op, Context context)	Apply the property function transformation.

Methods inherited from class org.apache.jena.sparql.algebra.TransformCopy

transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform, transform

Methods inherited from class java.lang.Object

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

Constructor Details

TransformPropertyFunction

public TransformPropertyFunction(Context context)

Method Details

transform

public static Op transform(Op op,
 Context context)

Apply the property function transformation.

The context provides the place to find the property function registry. A custom one can be supplied using ARQConstants.registryPropertyFunctions

See PropertyFunctionRegistry.chooseRegistry(org.apache.jena.sparql.util.Context) for the full decision process.

If ARQ.enablePropertyFunctions is false, then property functions are not enabled and remain as plain triples. For example, this is set false by "strict mode"

transform

public Op transform(OpTriple opTriple)

Specified by:

transform in interface Transform

Overrides:

transform in class TransformCopy

transform

public Op transform(OpBGP opBGP)

Specified by:

transform in interface Transform

Overrides:

transform in class TransformCopy