net.cassite.daf4j.QueryParameter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of daf4j-api Show documentation

A library provides facade api for data accessing.

The newest version!

package net.cassite.daf4j;

import java.util.HashMap;
import java.util.Map;

/**
 * 查询参数
 */
public class QueryParameter {
        /**
         * 参数列表
         */
        public final Map parameters = new HashMap();

        public QueryParameter() {
        }

        /**
         * 分页,取前i条记录
         *
         * @param i 前i条记录
         * @return 链式, 对象本身
         */
        public QueryParameter top(int i) {
                parameters.put(QueryParameterTypes.top, new Object[]{i});
                return this;
        }

        /**
         * 分页,取start到end的记录
         *
         * @param start 起始
         * @param end   结束
         * @return 链式, 对象本身
         */
        public QueryParameter limit(int start, int end) {
                parameters.put(QueryParameterTypes.limit, new Object[]{start, end});
                return this;
        }

        /**
         * 排序依据
         *
         * @param dataArr 排序依据
         * @return 链式, 对象本身
         */
        public QueryParameter orderBy(OrderBase... dataArr) {
                parameters.put(QueryParameterTypes.orderBy, dataArr);
                return this;
        }

        public QueryParameter distinct() {
                parameters.put(QueryParameterTypes.distinct, new Object[0]);
                return this;
        }
}