package org.apache.ojb.broker.metadata.torque;
/* Copyright 2002-2005 The Apache Software Foundation
*
* 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.
*/
import org.apache.ojb.broker.metadata.IndexDescriptor;
import java.util.Vector;
public class TorqueIndexGenerator {
public void generateIndices(Vector indexDescriptors, StringBuffer buffer) {
int numIndexes = indexDescriptors.size();
for (int i = 0; i < numIndexes; i++) {
IndexDescriptor index = (IndexDescriptor) indexDescriptors.get(i);
String indexTag = getIndexTag(index);
buffer.append(" <");
buffer.append(indexTag);
if (index.getName() != null) {
buffer.append(" name=\"");
buffer.append(index.getName());
buffer.append("\"");
}
buffer.append(">\n");
generateStringVector(index.getIndexColumns(), indexTag + "-column", "name", " ", buffer);
buffer.append(" </");
buffer.append(indexTag);
buffer.append(">\n");
}
}
private String getIndexTag(IndexDescriptor indexDescriptor) {
if (indexDescriptor.isUnique()) {
return "unique";
} else {
return "index";
}
}
private void generateStringVector(Vector strings, String element, String attribute, String indentation, StringBuffer buffer) {
for (int i = 0; i < strings.size(); i++) {
buffer.append(indentation);
buffer.append("<");
buffer.append(element);
buffer.append(" ");
buffer.append(attribute);
buffer.append("=\"");
buffer.append(strings.get(i));
buffer.append("\"/>\n");
}
}
}