idmethod.java

一个数据访问层Torque3.1的生成器的源代码

package org.apache.torque.engine.database.model;

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/**
 * Interface for various ID retrieval method types
 * (i.e. auto-increment, sequence, ID broker, etc.).
 *
 * @author <a href="mailto:[e-mail]">Daniel Rall</a>
 * @version $Id: IDMethod.java,v 1.1 2003/02/10 13:20:58 mpoeschl Exp $
 */
public interface IDMethod
{
    /**
     * Key generation via database-specific ID method
     * (i.e. auto-increment for MySQL, sequence for Oracle, etc.).
     */
    String NATIVE = "native";

    /**
     * Key generation via auto-increment.
     */
    String AUTO_INCREMENT = "autoincrement";

    /**
     * Key generation via sequences.
     */
    String SEQUENCE = "sequence";

    /**
     * Key generation via the IDBroker table.
     */
    String ID_BROKER = "idbroker";

    /**
     * No RDBMS key generation (keys may be generated by the
     * application).
     */
    String NO_ID_METHOD = "none";
}