org.nbone.persistence.criterion.QueryOperator Maven / Gradle / Ivy

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package org.nbone.persistence.criterion;
/**
 *
 * @author chenyicheng
 * @version 1.0
 * @since 2014/6/19
 */

public interface QueryOperator extends IQueryTransfer {

	public static final String eq = "=";
	public static final String not_eq = "<>";
	public static final String lt = "<";
	public static final String gt = ">";
	public static final String lt_eq = "<=";
	public static final String gt_eq = ">=";
	
	public static final String in = "in";
	public static final String not_in = "not in";
	public static final String between = "between";
	public static final String like = "like";
	public static final String left_like = "leftlike";
	public static final String right_like = "rightlike";
	public static final String is_null = "is null";
	public static final String is_not_null = "is not null";
	
	public static final String and = "and";
	public static final String or = "or";
	public static final String not = "not";
	
	public static final String ASC = "asc";
	public static final String DESC = "desc";
	
	public static final String ORDER_BY = "order by";
	public static final String GROUP_BY = "group by";
	
	
	//-----------------------------------------------------------------
	//left blank/right blank 
	//------------------------------------------------------------------
	

	
}