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ARQ is a SPARQL 1.1 query engine for Apache Jena
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jena.sparql.function;
import org.apache.jena.graph.Graph ;
import org.apache.jena.query.ARQ ;
import org.apache.jena.sparql.core.DatasetGraph ;
import org.apache.jena.sparql.engine.ExecutionContext ;
import org.apache.jena.sparql.util.Context ;
/** Environment passed to functions -- see also {@link org.apache.jena.sparql.engine.ExecutionContext} */
public class FunctionEnvBase implements FunctionEnv
{
private Context context ;
private Graph activeGraph ;
private DatasetGraph dataset ;
private ExecutionContext execContext = null ;
public FunctionEnvBase() { this(ARQ.getContext(), null, null) ; }
public FunctionEnvBase(Context context) { this ( context, null, null) ; }
public FunctionEnvBase(ExecutionContext execCxt)
{
this(execCxt.getContext(), execCxt.getActiveGraph(), execCxt.getDataset()) ;
execContext = execCxt ;
}
public FunctionEnvBase(Context context, Graph activeGraph, DatasetGraph dataset)
{
this.context = context ;
this.activeGraph = activeGraph ;
this.dataset = dataset ;
}
@Override
public Graph getActiveGraph()
{
return activeGraph ;
}
@Override
public Context getContext()
{
return context ;
}
// public ExecutionContext getExecutionContext()
// {
// if ( execContext == null )
// execContext = new ExecutionContext(context, activeGraph, dataset, QC.getFactory(context)) ;
// return execContext ;
// }
@Override
public DatasetGraph getDataset()
{
return dataset ;
}
}