org.hibernate.metamodel.relational.AbstractTableSpecification Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010 by Red Hat Inc and/or its affiliates or by
* third-party contributors as indicated by either @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.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Convenience base class for implementing the {@link ValueContainer} contract centralizing commonality
* between modeling tables, views and inline views.
*
* @author Steve Ebersole
*/
public abstract class AbstractTableSpecification implements TableSpecification {
private final static AtomicInteger tableCounter = new AtomicInteger( 0 );
private final int tableNumber;
private final LinkedHashMap values = new LinkedHashMap();
private final PrimaryKey primaryKey = new PrimaryKey( this );
private final List foreignKeys = new ArrayList();
public AbstractTableSpecification() {
this.tableNumber = tableCounter.getAndIncrement();
}
@Override
public int getTableNumber() {
return tableNumber;
}
@Override
public Iterable values() {
return values.values();
}
@Override
public Column locateOrCreateColumn(String name) {
if(values.containsKey( name )){
return (Column) values.get( name );
}
final Column column = new Column( this, values.size(), name );
values.put( name, column );
return column;
}
@Override
public DerivedValue locateOrCreateDerivedValue(String fragment) {
if(values.containsKey( fragment )){
return (DerivedValue) values.get( fragment );
}
final DerivedValue value = new DerivedValue( this, values.size(), fragment );
values.put( fragment, value );
return value;
}
@Override
public Tuple createTuple(String name) {
return new Tuple( this, name );
}
@Override
public Iterable getForeignKeys() {
return foreignKeys;
}
@Override
public ForeignKey createForeignKey(TableSpecification targetTable, String name) {
ForeignKey fk = new ForeignKey( this, targetTable, name );
foreignKeys.add( fk );
return fk;
}
@Override
public PrimaryKey getPrimaryKey() {
return primaryKey;
}
}