/*
 * #%L
 * JSQLParser library
 * %%
 * Copyright (C) 2004 - 2013 JSQLParser
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as 
 * published by the Free Software Foundation, either version 2.1 of the 
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-2.1.html>.
 * #L%
 */
package net.sf.jsqlparser.util.deparser;

import java.util.Iterator;

import net.sf.jsqlparser.statement.create.index.CreateIndex;
import net.sf.jsqlparser.statement.create.table.Index;

/**
 * A class to de-parse (that is, tranform from JSqlParser hierarchy into a string)
 * a {@link net.sf.jsqlparser.statement.create.index.CreateIndex}
 *
 * @author Raymond Augé
 */
public class CreateIndexDeParser {

    private StringBuilder buffer;

	/**
	 * @param buffer the buffer that will be filled with the create
	 */
	public CreateIndexDeParser(StringBuilder buffer) {
		this.buffer = buffer;
	}

	public void deParse(CreateIndex createIndex) {
		Index index = createIndex.getIndex();

		buffer.append("CREATE ");

		if (index.getType() != null) {
			buffer.append(index.getType());
			buffer.append(" ");
		}

		buffer.append("INDEX ");
		buffer.append(index.getName());
		buffer.append(" ON ");
		buffer.append(createIndex.getTable().getFullyQualifiedName());

		if (index.getColumnsNames() != null) {
			buffer.append(" (");
			for (Iterator iter = index.getColumnsNames().iterator(); iter.hasNext();) {
				String columnName = (String)iter.next();
				buffer.append(columnName);

				if (iter.hasNext()) {
					buffer.append(", ");
				}
			}
			buffer.append(")");
		}
	}

	public StringBuilder getBuffer() {
		return buffer;
	}

	public void setBuffer(StringBuilder buffer) {
		this.buffer = buffer;
	}

}
