/*
 * Copyright Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags and
 * the COPYRIGHT.txt file distributed with this work.
 *
 * 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 org.teiid.translator.jdbc.ingres;

import java.util.Arrays;
import java.util.List;

import org.teiid.language.Limit;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.Translator;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.jdbc.FunctionModifier;

@Translator(name="ingres93", description="A translator for Ingres 9.3 or later Database")
public class Ingres93ExecutionFactory extends IngresExecutionFactory {
	
	@Override
	public void start() throws TranslatorException {
		super.start();
		convert.addTypeMapping("ansidate", FunctionModifier.DATE); //$NON-NLS-1$
		convert.addTypeMapping("timestamp(9) with time zone", FunctionModifier.TIMESTAMP); //$NON-NLS-1$
	}
	
	@SuppressWarnings("unchecked")
	@Override
	public List<?> translateLimit(Limit limit, ExecutionContext context) {
		if (limit.getRowOffset() > 0) {
	        return Arrays.asList("OFFSET ", limit.getRowOffset(), " FETCH FIRST ", limit.getRowLimit(), " ROWS ONLY"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
		}
		return super.translateLimit(limit, context);
	}
	
	@Override
	public boolean supportsRowOffset() {
		return true;
	}
	
}
