/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.cfg;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.StringTokenizer;
import javax.persistence.Index;

Author:Strong Liu
/** * @author Strong Liu <stliu@hibernate.org> */
public class JPAIndexHolder { private final String name; private final String[] columns; private final String[] ordering; private final boolean unique; public JPAIndexHolder(Index index) { StringTokenizer tokenizer = new StringTokenizer( index.columnList(), "," ); List<String> tmp = new ArrayList<String>(); while ( tokenizer.hasMoreElements() ) { tmp.add( tokenizer.nextToken().trim() ); } this.name = index.name(); this.columns = new String[tmp.size()]; this.ordering = new String[tmp.size()]; this.unique = index.unique(); initializeColumns( columns, ordering, tmp ); } public String[] getColumns() { return columns; } public String getName() { return name; } public String[] getOrdering() { return ordering; } public boolean isUnique() { return unique; } private void initializeColumns(String[] columns, String[] ordering, List<String> list) { for ( int i = 0, size = list.size(); i < size; i++ ) { final String description = list.get( i ); final String tmp = description.toLowerCase(Locale.ROOT); if ( tmp.endsWith( " desc" ) ) { columns[i] = description.substring( 0, description.length() - 5 ); ordering[i] = "desc"; } else if ( tmp.endsWith( " asc" ) ) { columns[i] = description.substring( 0, description.length() - 4 ); ordering[i] = "asc"; } else { columns[i] = description; ordering[i] = null; } } } }