taskbyidquery.java

来自「Java的框架」· Java 代码 · 共 50 行

package mcaps.apps.prrm.task.dao.jdbc.query;

import javax.sql.DataSource;

import mcaps.apps.prrm.task.dao.util.TaskField;
import mcap.core.base.dao.util.SortOrder;

/**
 * This class extends the TaskQuery class to generate the 
 * precompiled sql query statements to the task table using
 * the id as query parameter.
 * 
 * @author jov
 * @date Sep 23, 2005
 * @version 1.0.1.0
 */
public class TaskByIdQuery extends TaskQuery {
		
	/**
	 * Default constructor which accepts the datasource and
	 * initialize the super class for creation of precompiled 
	 * sql statement for querying database table. The ID is used 
	 * as query parameter.
	 * @param ds the datasource to the database
	 */
	public TaskByIdQuery(DataSource ds) {
		super(ds,
				TaskField.FIELDS[TaskField.ID] + " = ?",
				new int[]{TaskField.FIELDTYPES[TaskField.ID]});
	}
	
	/**
	 * Constructor which accepts the datasource and
	 * initialize the super class for creation of precompiled 
	 * sql statement for querying database table. The ID is used 
	 * as query parameter. This constructor enable the choice for
	 * sorted query results.
	 * @param ds the datasource to the database
	 * @param sortColumn the column used to sort the records
	 * @param order the sort order for sorting the records
	 */
	public TaskByIdQuery(DataSource ds, int sortColumn, SortOrder order) {
		super(ds,
				TaskField.FIELDS[TaskField.ID] + " = ?",
				new int[]{TaskField.FIELDTYPES[TaskField.ID]},
				sortColumn,
				order);
	}
}