NamingStrategyDelegator/NamingStrategyDelegate (not good names; need to change...)

gistfile1.txt

/**
 * Provides access to the appropriate {@link NamingStrategyDelegate}.
 *
 * @author Gail Badner
 */
public interface NamingStrategyDelegator {

	public void injectNamingStrategy(NamingStrategy namingStrategy);

	/**
	 * Returns the {@link org.hibernate.cfg.NamingStrategy}.
	 *
	 * @return the {@link org.hibernate.cfg.NamingStrategy}.
	 */
	public NamingStrategy getNamingStrategy();

	/**
	 * Returns the appropriate {@link NamingStrategyDelegate}.
	 *
	 * @param isHbm - true, if {@link NamingStrategyDelegate} is to be used for a
	 * hibernate-specific (hbm.xml) mapping; false, otherwise.
	 *
	 * @return the appropriate {@link NamingStrategyDelegate}
	 */
	public NamingStrategyDelegate getNamingStrategyDelegate(boolean isHbm);
}

public interface NamingStrategyDelegate {

	public String classToTableName(String className);

	public String propertyToColumnName(String propertyName);

	/**
	 * Alter the table name given in the mapping document
	 * @param tableName a table name
	 * @return a table name
	 */
	public String tableName(String tableName);

	/**
	 * Alter the column name given in the mapping document
	 * @param columnName a column name
	 * @return a column name
	 */
	public String columnName(String columnName);


	public String elementCollectionTableName(
			String ownerEntityName,
			String ownerJpaEntityName,
			String ownerEntityTable,
			String propertyName);

	public String elementCollectionForeignKeyColumnName(
			String propertyName,
			String propertyEntityName,
			String propertyJpaEntityName,
			String propertyTableName,
			String referencedColumnName);


	public String entityCollectionTableName(
			String ownerEntityName,
			String ownerJpaEntityName,
			String ownerEntityTable,
			String associatedEntityName,
			String associatedJpaEntityName,
			String associatedEntityTable,
			String propertyName);

	public String entityAssociationForeignKeyColumnName(
			String propertyName,
			String propertyEntityName,
			String propertyJpaEntityName,
			String propertyTableName,
			String referencedColumnName);

	public String joinKeyColumnName(String joinedColumn, String joinedTable);

	public String logicalColumnName(String columnName, String propertyName);

	public String logicalElementCollectionTableName(
			String tableName,
			String ownerEntityName,
			String ownerJpaEntityName,
			String ownerEntityTable,
			String propertyName);

	public String logicalEntityCollectionTableName(
			String tableName,
			String ownerEntityName,
			String ownerJpaEntityName,
			String ownerEntityTable,
			String associatedEntityName,
			String associatedJpaEntityName,
			String associatedEntityTable,
			String propertyName);

	public String logicalCollectionColumnName(String columnName, String propertyName, String referencedColumn);

	static interface NamingStrategyDelegateContext {
		NamingStrategy getNamingStrategy();
	}
}

public class DefaultNamingStrategyDelegator
		implements NamingStrategyDelegator, NamingStrategyDelegate.NamingStrategyDelegateContext {
	private NamingStrategy namingStrategy;
	private final NamingStrategyDelegate hbmNamingStrategyDelegate;
	private final NamingStrategyDelegate jpaNamingStrategyDelegate;

	public DefaultNamingStrategyDelegator(NamingStrategy namingStrategy) {
		this.namingStrategy = namingStrategy;
		this.hbmNamingStrategyDelegate = new HbmNamingStrategyDelegate( this );
		this.jpaNamingStrategyDelegate = new JpaNamingStrategyDelegate( this );
	}

	@Override
	public void injectNamingStrategy(NamingStrategy namingStrategy) {
		this.namingStrategy = namingStrategy;
	}

	public NamingStrategy getNamingStrategy() {
		return namingStrategy;
	}

	@Override
	public NamingStrategyDelegate getNamingStrategyDelegate(boolean isHbm) {
		return isHbm ?
				hbmNamingStrategyDelegate :
				jpaNamingStrategyDelegate;
	}
}

public class LegacyNamingStrategyDelegator implements NamingStrategyDelegator, NamingStrategyDelegate.NamingStrategyDelegateContext {
	private NamingStrategy namingStrategy;
	private final NamingStrategyDelegate hbmNamingStrategyDelegate;
	private final NamingStrategyDelegate jpaNamingStrategyDelegate;

	public LegacyNamingStrategyDelegator(NamingStrategy namingStrategy) {
		this.namingStrategy = namingStrategy;
		this.hbmNamingStrategyDelegate = new HbmNamingStrategyDelegate( this );
		this.jpaNamingStrategyDelegate = new LegacyNamingStrategyDelegate( this );
	}

	@Override
	public void injectNamingStrategy(NamingStrategy namingStrategy) {
		this.namingStrategy = namingStrategy;
	}

	public NamingStrategy getNamingStrategy() {
		return namingStrategy;
	}

	@Override
	public NamingStrategyDelegate getNamingStrategyDelegate(boolean isHbm) {
		return isHbm ?
				hbmNamingStrategyDelegate :
				jpaNamingStrategyDelegate;
	}

	private class LegacyNamingStrategyDelegate extends AbstractNamingStrategyDelegate {


		LegacyNamingStrategyDelegate(NamingStrategyDelegateContext context) {
			super( context );
		}

		@Override
		public String tableName(String tableName) {
			return namingStrategy.tableName( tableName );
		}

		@Override
		public String columnName(String columnName) {
			return namingStrategy.columnName( columnName );
		}

		@Override
		public String elementCollectionTableName(
				String ownerEntityName,
				String ownerJpaEntityName,
				String ownerEntityTable,
				String propertyNamePath) {
			return namingStrategy.collectionTableName(
					ownerEntityName,
					StringHelper.unqualifyEntityName( ownerEntityName ),
					null,
					null,
					propertyNamePath
			);
		}

		@Override
		public String elementCollectionForeignKeyColumnName(
				String propertyName,
				String propertyEntityName,
				String propertyJpaEntityName,
				String propertyTableName,
				String referencedColumnName) {
			return namingStrategy.foreignKeyColumnName(
					propertyName,
					propertyEntityName,
					StringHelper.unqualifyEntityName( propertyEntityName ),
					referencedColumnName
			);
		}

		@Override
		public String entityCollectionTableName(
				String ownerEntityName,
				String ownerJpaEntityName,
				String ownerEntityTable,
				String associatedEntityName,
				String associatedJpaEntityName,
				String associatedEntityTable,
				String propertyNamePath) {
			return namingStrategy.collectionTableName(
					ownerEntityName,
					ownerEntityTable,
					associatedEntityName,
					associatedEntityTable,
					propertyNamePath
			);
		}

		@Override
		public String entityAssociationForeignKeyColumnName(
				String propertyName,
				String propertyEntityName,
				String propertyJpaEntityName,
				String propertyTableName,
				String referencedColumnName) {
			return namingStrategy.foreignKeyColumnName(
					propertyName,
					propertyEntityName,
					propertyTableName,
					referencedColumnName
			);
		}

		@Override
		public String logicalElementCollectionTableName(
				String tableName,
				String ownerEntityName,
				String ownerJpaEntityName,
				String ownerEntityTable,
				String propertyName) {
			return namingStrategy.logicalCollectionTableName(
					tableName,
					ownerEntityName == null ? null : StringHelper.unqualifyEntityName( ownerEntityName ),
					null,
					propertyName
			);
		}

		@Override
		public String logicalEntityCollectionTableName(
				String tableName,
				String ownerEntityName,
				String ownerJpaEntityName,
				String ownerEntityTable,
				String associatedEntityName,
				String associatedJpaEntityName,
				String associatedEntityTable,
				String propertyName) {
			return namingStrategy.logicalCollectionTableName(
					tableName,
					ownerEntityTable,
					associatedEntityTable,
					propertyName
			);
		}
	}
}