/*
 * 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.salesforce.execution.visitors;

import org.teiid.language.Delete;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.translator.TranslatorException;


public class DeleteVisitor extends CriteriaVisitor implements IQueryProvidingVisitor {

	public DeleteVisitor(RuntimeMetadata metadata) {
		super(metadata);
	}

	@Override
	public void visit(Delete delete) {
		super.visit(delete);
		try {
			loadColumnMetadata(delete.getTable());
		} catch (TranslatorException ce) {
			exceptions.add(ce);
		}
	}

	/*
	 * The SOQL SELECT command uses the following syntax: SELECT fieldList FROM
	 * objectType [WHERE The Condition Expression (WHERE Clause)] [ORDER BY]
	 * LIMIT ?
	 */

	public String getQuery() throws TranslatorException {
		if (!exceptions.isEmpty()) {
			throw exceptions.get(0);
		}
		StringBuilder result = new StringBuilder();
		result.append(SELECT).append(SPACE);
		result.append("Id").append(SPACE); //$NON-NLS-1$
		result.append(FROM).append(SPACE);
		result.append(table.getSourceName()).append(SPACE);
		addCriteriaString(result);
		return result.toString();
	}
}
