kdbexception.java

用JAVA实现了,将DB装入内存,内存由DBMS控制,实现简单数据库的创建、数据表的创建、记录插入、查询以及表的删除。

package org.kdb;

/**

 * Date: 2007-10-29
 * Time: 11:22:12
 */
public class KdbException extends Exception {
    private String message;
    private String state;
    private int code;

    /**
     * @param message String
     * @param state   XOPEN / SQL code for exceptoin
     * @param code    number code in HSQLDB
     */
    public KdbException(String message, String state, int code) {

        this.message = message;
        this.state = state;
        this.code = code;
    }

    /**
     * @param message
     */
    public KdbException(String message) {
        this.message = message;
    }

//    /**
//     * @param r containing the members
//     */
//    public KdbException(Result r) {
//
//        this.message = r.getMainString();
//        this.state   = r.getSubString();
//        this.code    = r.getStatementID();
//    }

    public KdbException(Throwable t, String errorState, int errorCode) {

        this.message = t.toString();
        this.state = errorState;
        this.code = errorCode;
    }

    /**
     * @return message
     */
    public String getMessage() {
        return message;
    }

    /**
     * @return SQL State
     */
    public String getSQLState() {
        return state;
    }

    /**
     * @return vendor specific error code
     */
    public int getErrorCode() {
        return code;
    }
}