程序包 org.ssssssss.script.functions.linq

类 AggregationFunctions

java.lang.Object

org.ssssssss.script.functions.linq.AggregationFunctions

public class AggregationFunctions
extends Object

聚合函数

构造器概要

构造器

构造器	说明
AggregationFunctions()

方法概要

修饰符和类型	方法	说明
Object	avg(Object target)
int	count(Object target)
String	group_concat(Object target)
String	group_concat(Object target, String separator)
Object	max(Object target)
Object	min(Object target)
Number	sum(Object target)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

AggregationFunctions

public AggregationFunctions()

方法详细资料

count

@Function
@Comment("\u805a\u5408\u51fd\u6570-count")
public int count(@Comment(name="value",value="\u96c6\u5408")
 Object target)

max

@Function
@Comment("\u805a\u5408\u51fd\u6570-max")
public Object max(@Comment(name="value",value="\u96c6\u5408")
 Object target)

sum

@Function
@Comment("\u805a\u5408\u51fd\u6570-sum")
public Number sum(@Comment(name="value",value="\u96c6\u5408")
 Object target)

min

@Function
@Comment("\u805a\u5408\u51fd\u6570-min")
public Object min(@Comment(name="value",value="\u96c6\u5408")
 Object target)

avg

@Function
@Comment("\u805a\u5408\u51fd\u6570-avg")
public Object avg(@Comment(name="value",value="\u96c6\u5408")
 Object target)

group_concat

@Function
@Comment("\u5206\u7ec4\u540e\u6309\u6307\u5b9a\u5b57\u7b26\u4e32\u62fc\u63a5")
public String group_concat(@Comment(name="target",value="\u5217\uff0c\u5982t.a")
 Object target,
 @Comment(name="separator",value="\u5206\u9694\u7b26\uff0c\u5982`|`")
 String separator)

group_concat

@Function
@Comment("\u5206\u7ec4\u540e\u4f7f\u7528`,`\u62fc\u63a5")
public String group_concat(@Comment(name="target",value="\u5217\uff0c\u5982t.a")
 Object target)