/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * Licensed 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.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.orient.core.metadata.function;
import java.util.Set;
import com.orientechnologies.orient.core.db.ODatabaseRecordThreadLocal;
import com.orientechnologies.orient.core.db.record.ODatabaseRecord;
import com.orientechnologies.orient.core.exception.OCommandExecutionException;
import com.orientechnologies.orient.core.sql.functions.OSQLFunction;
import com.orientechnologies.orient.core.sql.functions.OSQLFunctionFactory;
/**
* Dynamic function factory bound to the database's functions
*
* @author Luca Garulli
*
*/
public class ODatabaseFunctionFactory implements OSQLFunctionFactory {
@Override
public boolean hasFunction(final String iName) {
final ODatabaseRecord db = ODatabaseRecordThreadLocal.INSTANCE.get();
return db.getMetadata().getFunctionLibrary().getFunction(iName) != null;
}
@Override
public Set<String> getFunctionNames() {
final ODatabaseRecord db = ODatabaseRecordThreadLocal.INSTANCE.get();
return db.getMetadata().getFunctionLibrary().getFunctionNames();
}
@Override
public OSQLFunction createFunction(final String name) throws OCommandExecutionException {
final ODatabaseRecord db = ODatabaseRecordThreadLocal.INSTANCE.get();
final OFunction f = db.getMetadata().getFunctionLibrary().getFunction(name);
return new ODatabaseFunction(f);
}
}