cool.scx.data.query.GroupBy Maven / Gradle / Ivy
package cool.scx.data.query;
import cool.scx.data.Query;
import java.util.Arrays;
/**
* 分组
*
* @author scx567888
* @version 0.0.1
*/
public final class GroupBy implements Query {
/**
* 分组字段列表
*/
private Object[] groupByClauses;
/**
* 创建一个 OrderBy 对象
*/
public GroupBy() {
this.groupByClauses = new Object[]{};
}
/**
* 根据旧的 GroupBy 创建一个 GroupBy 对象
*
* @param oldGroupBy 旧的 GroupBy
*/
public GroupBy(GroupBy oldGroupBy) {
this.groupByClauses = Arrays.copyOf(oldGroupBy.groupByClauses, oldGroupBy.groupByClauses.length);
}
/**
* set
*
* @param groupByClauses a
* @return a
*/
public GroupBy set(Object... groupByClauses) {
this.groupByClauses = groupByClauses;
return this;
}
public Object[] clauses() {
return this.groupByClauses;
}
/**
* clear
*
* @return self
*/
public GroupBy clear() {
this.groupByClauses = new Object[]{};
return this;
}
@Override
public GroupBy getGroupBy() {
return this;
}
}