/*
* 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 com.hp.hpl.jena.sdb.core;
import com.hp.hpl.jena.sdb.exprmatch.ActionMatch;
import com.hp.hpl.jena.sdb.exprmatch.ExprMatcher;
import com.hp.hpl.jena.sdb.exprmatch.MapAction;
import com.hp.hpl.jena.sdb.exprmatch.MapResult;
import com.hp.hpl.jena.sdb.shared.SDBInternalError;
import com.hp.hpl.jena.sparql.core.Var;
import com.hp.hpl.jena.sparql.expr.Expr;
import com.hp.hpl.jena.sparql.util.ExprUtils;
public class ExprPattern
{
Expr pattern ;
MapAction mapAction;
public ExprPattern(String pattern ,
Var[] vars,
ActionMatch[] actions)
{
this.pattern = ExprUtils.parse(pattern) ;
if ( vars.length != actions.length )
throw new SDBInternalError("Variable and action arrays are different lengths") ;
mapAction = new MapAction() ;
for ( int i = 0 ; i < vars.length ; i++ )
{
Var var = vars[i] ;
ActionMatch a = actions[i] ;
mapAction.put(var, a) ;
}
}
public MapResult match(Expr expression)
{
return ExprMatcher.match(expression, pattern, mapAction) ;
}
}