| package org.apache.rya.indexing; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.Set; |
| |
| import org.eclipse.rdf4j.model.IRI; |
| import org.eclipse.rdf4j.query.algebra.StatementPattern; |
| import org.eclipse.rdf4j.query.algebra.Var; |
| |
| import com.google.common.collect.Sets; |
| |
| public class IndexingExpr { |
| |
| private final IRI function; |
| private final Object[] arguments; |
| private final StatementPattern spConstraint; |
| |
| public IndexingExpr(IRI function, StatementPattern spConstraint, Object... arguments) { |
| this.function = function; |
| this.arguments = arguments; |
| this.spConstraint = spConstraint; |
| } |
| |
| public IRI getFunction() { |
| return function; |
| } |
| |
| public Object[] getArguments() { |
| return arguments; |
| } |
| |
| public StatementPattern getSpConstraint() { |
| return spConstraint; |
| } |
| |
| |
| public Set<String> getBindingNames() { |
| //resource and match variable for search are already included as standard result-bindings |
| Set<String> bindings = Sets.newHashSet(); |
| |
| for(Var v: spConstraint.getVarList()) { |
| if(!v.isConstant()) { |
| bindings.add(v.getName()); |
| } |
| } |
| return bindings; |
| } |
| |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof IndexingExpr)) { |
| return false; |
| } |
| IndexingExpr arg = (IndexingExpr) other; |
| return (this.function.equals(arg.function)) && (this.spConstraint.equals(arg.spConstraint)) |
| && (this.arguments.equals(arg.arguments)); |
| } |
| |
| |
| @Override |
| public int hashCode() { |
| int result = 17; |
| result = 31*result + function.hashCode(); |
| result = 31*result + spConstraint.hashCode(); |
| result = 31*result + arguments.hashCode(); |
| |
| return result; |
| } |
| |
| } |
| |
| |
| |