/*
*
* * 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.sql.functions;
/**
* Abstract class to extend to build Custom SQL Functions that saves the configured parameters. Extend it and register it with:
* <code>OSQLParser.getInstance().registerStatelessFunction()</code> or
* <code>OSQLParser.getInstance().registerStatefullFunction()</code> to being used by the SQL engine.
*
* @author Luca Garulli (l.garulli--at--orientechnologies.com)
*
*/
public abstract class OSQLFunctionConfigurableAbstract extends OSQLFunctionAbstract {
protected Object[] configuredParameters;
protected OSQLFunctionConfigurableAbstract(final String iName, final int iMinParams, final int iMaxParams) {
super(iName, iMinParams, iMaxParams);
}
@Override
public void config(final Object[] iConfiguredParameters) {
configuredParameters = iConfiguredParameters;
}
@Override
public String toString() {
final StringBuilder buffer = new StringBuilder(name);
buffer.append('(');
if (configuredParameters != null) {
for (int i = 0; i < configuredParameters.length; ++i) {
if (i > 0)
buffer.append(',');
buffer.append(configuredParameters[i]);
}
}
buffer.append(')');
return buffer.toString();
}
}