Hibernate example source code file (Schema.java)

This example Hibernate source code file (Schema.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

hashmap, identifier, inlineview, inlineview, map, name, name, override, schema, schema, string, stringbuilder, table, table, util

The Hibernate Schema.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.metamodel.relational;

import java.util.HashMap;
import java.util.Map;

/**
 * Represents a named schema/catalog pair and manages objects defined within.
 *
 * @author Steve Ebersole
 */
public class Schema {
	private final Name name;
	private Map<String, InLineView> inLineViews = new HashMap();
	private Map<Identifier, Table> tables = new HashMap();

	public Schema(Name name) {
		this.name = name;
	}

	public Schema(Identifier schema, Identifier catalog) {
		this( new Name( schema, catalog ) );
	}

	public Name getName() {
		return name;
	}

	public Table locateTable(Identifier name) {
		return tables.get( name );
	}

	public Table createTable(Identifier name) {
		Table table = new Table( this, name );
		tables.put( name, table );
		return table;
	}

	public Table locateOrCreateTable(Identifier name) {
		final Table existing = locateTable( name );
		if ( existing == null ) {
			return createTable( name );
		}
		return existing;
	}

	public Iterable<Table> getTables() {
		return tables.values();
	}

	public InLineView getInLineView(String logicalName) {
		return inLineViews.get( logicalName );
	}

	public InLineView createInLineView(String logicalName, String subSelect) {
		InLineView inLineView = new InLineView( this, logicalName, subSelect );
		inLineViews.put( logicalName, inLineView );
		return inLineView;
	}

	@Override
	public String toString() {
		final StringBuilder sb = new StringBuilder();
		sb.append( "Schema" );
		sb.append( "{name=" ).append( name );
		sb.append( '}' );
		return sb.toString();
	}

	@Override
	public boolean equals(Object o) {
		if ( this == o ) {
			return true;
		}
		if ( o == null || getClass() != o.getClass() ) {
			return false;
		}

		Schema schema = (Schema) o;

		if ( name != null ? !name.equals( schema.name ) : schema.name != null ) {
			return false;
		}

		return true;
	}

	@Override
	public int hashCode() {
		return name != null ? name.hashCode() : 0;
	}

	public static class Name {
		private final Identifier schema;
		private final Identifier catalog;

		public Name(Identifier schema, Identifier catalog) {
			this.schema = schema;
			this.catalog = catalog;
		}

		public Name(String schema, String catalog) {
			this( Identifier.toIdentifier( schema ), Identifier.toIdentifier( catalog ) );
		}

		public Identifier getSchema() {
			return schema;
		}

		public Identifier getCatalog() {
			return catalog;
		}

		@Override
		public String toString() {
			final StringBuilder sb = new StringBuilder();
			sb.append( "Name" );
			sb.append( "{schema=" ).append( schema );
			sb.append( ", catalog=" ).append( catalog );
			sb.append( '}' );
			return sb.toString();
		}

		@Override
		public boolean equals(Object o) {
			if ( this == o ) {
				return true;
			}
			if ( o == null || getClass() != o.getClass() ) {
				return false;
			}

			Name name = (Name) o;

			if ( catalog != null ? !catalog.equals( name.catalog ) : name.catalog != null ) {
				return false;
			}
			if ( schema != null ? !schema.equals( name.schema ) : name.schema != null ) {
				return false;
			}

			return true;
		}

		@Override
		public int hashCode() {
			int result = schema != null ? schema.hashCode() : 0;
			result = 31 * result + ( catalog != null ? catalog.hashCode() : 0 );
			return result;
		}
	}
}