程序包 org.hibernate.dialect.function

类 AvgWithArgumentCastFunction

java.lang.Object

org.hibernate.dialect.function.StandardSQLFunction

org.hibernate.dialect.function.StandardAnsiSqlAggregationFunctions.AvgFunction

org.hibernate.dialect.function.AvgWithArgumentCastFunction

所有已实现的接口:

SQLFunction

public class AvgWithArgumentCastFunction
extends StandardAnsiSqlAggregationFunctions.AvgFunction

Some databases strictly return the type of the aggregation value for AVG which is problematic in the case of averaging integers because the decimals will be dropped. The usual workaround is to cast the integer argument as some form of double/decimal.

作者:

Steve Ebersole

字段概要

从类继承的字段 org.hibernate.dialect.function.StandardAnsiSqlAggregationFunctions.AvgFunction

INSTANCE

构造器概要

构造器

构造器	说明
AvgWithArgumentCastFunction(String castType)	Constructs a AvgWithArgumentCastFunction

方法概要

修饰符和类型	方法	说明
protected String	renderArgument(String argument, int firstArgumentJdbcType)

从类继承的方法 org.hibernate.dialect.function.StandardAnsiSqlAggregationFunctions.AvgFunction

determineJdbcTypeCode, render, render

从类继承的方法 org.hibernate.dialect.function.StandardSQLFunction

getName, getRenderedName, getReturnType, getType, hasArguments, hasParenthesesIfNoArguments, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

AvgWithArgumentCastFunction

public AvgWithArgumentCastFunction(String castType)

Constructs a AvgWithArgumentCastFunction

参数:

castType - The type to cast the avg argument to

方法详细资料

renderArgument

protected String renderArgument(String argument,
                                int firstArgumentJdbcType)

覆盖:

renderArgument 在类中 StandardAnsiSqlAggregationFunctions.AvgFunction