namingstrategy.java

hibernate-3.1.3-all-src.zip 面向对象的访问数据库工具

//$Id: NamingStrategy.java 8579 2005-11-14 17:04:51Z epbernard $
package org.hibernate.cfg;

/**
 * A set of rules for determining the physical column
 * and table names given the information in the mapping
 * document. May be used to implement project-scoped
 * naming standards for database objects.
 *
 * #propertyToTableName(String, String) should be replaced by
 * {@link #collectionTableName(String, String, String)}
 *
 * @see DefaultNamingStrategy
 * @see ImprovedNamingStrategy
 * @author Gavin King
 * @author Emmanuel Bernard
 */
public interface NamingStrategy {
	/**
	 * Return a table name for an entity class
	 * @param className the fully-qualified class name
	 * @return a table name
	 */
	public String classToTableName(String className);
	/**
	 * Return a column name for a property path expression
	 * @param propertyName a property path
	 * @return a column name
	 */
	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);
	/**
	 * Return a collection table name ie an association having a join table
	 *
	 * @param ownerEntityTable owner side table name
	 * @param associatedEntityTable reverse side table name if any
	 * @param propertyName collection role
	 */
	public String collectionTableName(String ownerEntityTable, String associatedEntityTable, String propertyName);
	/**
	 * Return the join key column name ie a FK column used in a JOINED strategy or for a secondary table
	 *
	 * @param joinedColumn joined column name (logical one) used to join with
	 * @param joinedTable joined table name (ie the referenced table) used to join with
	 */
	public String joinKeyColumnName(String joinedColumn, String joinedTable);
	/**
	 * Return the foreign key column name for the given parameters
	 * @param propertyName the property name involved
	 * @param propertyTableName the property table name involved (logical one)
	 * @param referencedColumnName the referenced column name involved (logical one)
	 */
	public String foreignKeyColumnName(String propertyName, String propertyTableName, String referencedColumnName);
	/**
	 * Return the logical column name used to refer to a column in the metadata
	 * (like index, unique constraints etc)
	 * A full bijection is required between logicalNames and physical ones
	 * logicalName have to be case insersitively unique for a given table
	 *
	 * @param columnName given column name if any
	 * @param propertyName property name of this column
	 */
	public String logicalColumnName(String columnName, String propertyName);
	/**
	 * Returns the logical collection table name used to refer to a table in the mapping metadata
	 *
	 * @param tableName the metadata explicit name
	 * @param ownerEntityTable owner table entity table name (logical one)
	 * @param associatedEntityTable reverse side table name if any (logical one)
	 * @param propertyName collection role
	 */
	public String logicalCollectionTableName(String tableName, String ownerEntityTable, String associatedEntityTable, String propertyName);

	/**
	 * Returns the logical foreign key column name used to refer to this column in the mapping metadata
	 *
	 * @param columnName given column name in the metadata if any
	 * @param propertyName property name
	 * @param referencedColumn referenced column name (logical one) in the join
	 */
	public String logicalCollectionColumnName(String columnName, String propertyName, String referencedColumn);
}