程序包 org.hibernate.dialect.function

类 StandardAnsiSqlAggregationFunctions.AvgFunction

java.lang.Object

org.hibernate.dialect.function.StandardSQLFunction

org.hibernate.dialect.function.StandardAnsiSqlAggregationFunctions.AvgFunction

所有已实现的接口:

SQLFunction

直接已知子类:

AvgWithArgumentCastFunction

封闭类:

StandardAnsiSqlAggregationFunctions

public static class StandardAnsiSqlAggregationFunctions.AvgFunction
extends StandardSQLFunction

Definition of a standard ANSI SQL compliant AVG function

字段概要

字段

修饰符和类型	字段	说明
static StandardAnsiSqlAggregationFunctions.AvgFunction	INSTANCE	Singleton access

构造器概要

构造器

限定符	构造器	说明
protected	AvgFunction()

方法概要

修饰符和类型	方法	说明
protected int	determineJdbcTypeCode(Type firstArgumentType, SessionFactoryImplementor factory)
protected String	render(int firstArgumentJdbcType, String argument, SessionFactoryImplementor factory)
String	render(Type firstArgumentType, List arguments, SessionFactoryImplementor factory)	Render the function call as SQL fragment.
protected String	renderArgument(String argument, int firstArgumentJdbcType)

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

字段详细资料

INSTANCE

public static final StandardAnsiSqlAggregationFunctions.AvgFunction INSTANCE

Singleton access

构造器详细资料

AvgFunction

protected AvgFunction()

方法详细资料

render

public String render(Type firstArgumentType,
                     List arguments,
                     SessionFactoryImplementor factory)
              throws QueryException

从接口复制的说明: SQLFunction

Render the function call as SQL fragment.

Note, the 'firstArgumentType' parameter should match the one passed into SQLFunction.getReturnType(org.hibernate.type.Type, org.hibernate.engine.spi.Mapping)

指定者:

render 在接口中 SQLFunction

覆盖:

render 在类中 StandardSQLFunction

参数:

firstArgumentType - The type of the first argument

arguments - The function arguments

factory - The SessionFactory

返回:

The rendered function call

抛出:

QueryException - Indicates a problem rendering the function call.

determineJdbcTypeCode

protected final int determineJdbcTypeCode(Type firstArgumentType,
                                          SessionFactoryImplementor factory)
                                   throws QueryException

抛出:

QueryException

render

protected String render(int firstArgumentJdbcType,
                        String argument,
                        SessionFactoryImplementor factory)

renderArgument

protected String renderArgument(String argument,
                                int firstArgumentJdbcType)