/*
* Copyright 2013 Orient Technologies.
* Copyright 2013 Geomatys.
*
* 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.
*/
package com.orientechnologies.orient.core.sql.method.misc;
import com.orientechnologies.orient.core.command.OCommandContext;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.sql.functions.OSQLFunction;
import com.orientechnologies.orient.core.sql.functions.OSQLFunctionRuntime;
/**
* Delegates the execution to a function.
*
* @author Luca Garulli
*/
public class OSQLMethodFunctionDelegate extends OAbstractSQLMethod {
public static final String NAME = "function";
private OSQLFunctionRuntime func;
public OSQLMethodFunctionDelegate(final OSQLFunction f) {
super(NAME);
func = new OSQLFunctionRuntime(f);
}
@Override
public int getMinParams() {
final int min = func.getFunction().getMinParams();
return min == -1 ? -1 : min - 1;
}
@Override
public int getMaxParams() {
final int max = func.getFunction().getMaxParams();
return max == -1 ? -1 : max - 1;
}
@Override
public Object execute(final Object iThis, final OIdentifiable iCurrentRecord, final OCommandContext iContext,
final Object ioResult, final Object[] iParams) {
func.setParameters(iParams, false);
return func.execute(iThis, iCurrentRecord, ioResult, iContext);
}
@Override
public String toString() {
return "function " + func;
}
}