delete.java

来自「一个Java持久层类库」· Java 代码 · 共 71 行

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package ActiveObject.core;

import ActiveObject.exception.*;
import ActiveObject.vo.IntermediaryExpression;
import java.sql.SQLException;

/**
 *
 * @author Ruby
 */
public class Delete extends CustomizedOperation{
    
    public Delete(Class[] objects, String condition, Object[] params) throws ArgumentFormatError
    {
        super(objects, condition, params);
        this.expression.setOperateType(IntermediaryExpression.Delete);
    }
    
    /**
     * 添加排序条件
     * @param field
     * @param sortOrder
     * @return
     */
    public Delete addOrder (String field, Order sortOrder) {
        this.addOrderUtil(field, sortOrder);
        return this;
    }
    
    public int run() throws SQLException, ObjectAnalysisException
    {
        return this.excuteUpdate();
    }

    @Override
    protected String toSQLString()  throws ObjectAnalysisException{
        return new SQLCreator(expression).toSQLString();
//        //添加排序控制
//        String expandSql = this.createOrderStatement();
//        StringBuffer sql = new StringBuffer(200);
//        sql.append("delete ");
//        int objectIndex = this.aliasMap.size()-1;
//        int index=0;
//        //添加要删除的表的别名
//        for(String item : this.aliasMap.values())
//        {
//            sql.append(item);
//            if(index < objectIndex)
//                sql.append(',');
//            else
//                sql.append(' ');
//        }
//        sql.append("from ");
//        sql.append(this.createAliasStatement());
//        if(!OQLParser.isContentEmpty(condition))
//        {
//            sql.append(" where ");
//            sql.append(condition);
//        }
//        if(expandSql != null)
//            sql.append(expandSql);
//
//       return OQLParser.parseLikeSyntax(sql, params);
    }
}