gu.sql2java.transformer

类 BaseTypeTransformer.BaseFunction<F,T>

java.lang.Object

gu.sql2java.transformer.BaseTypeTransformer.BaseFunction<F,T>

类型参数:

F - 输入类型

T - 输出类型

所有已实现的接口:

com.google.common.base.Function<F,T>

直接已知子类:

BaseTypeTransformer.BooleanToNumber, BaseTypeTransformer.DynamicTransformer, BaseTypeTransformer.Empty2NullFunction, BaseTypeTransformer.GenericEntryTransformer, BaseTypeTransformer.Iterable2PrimitiveArrayFunction, BaseTypeTransformer.Number2Enum, BaseTypeTransformer.SplitTransformer

封闭类:

BaseTypeTransformer

public abstract static class BaseTypeTransformer.BaseFunction<F,T>
extends java.lang.Object
implements com.google.common.base.Function<F,T>

数据类型转换器抽象类
用于将 input转换为指定的类型

从以下版本开始:

4.4.0

字段概要

字段

限定符和类型	字段和说明
protected TransformerContext.LocalContext	builtinInputContext
protected ContextProvider	feature
protected ContextProvider	inputFeature 内置输入特性，用于子类定义对输入值的预处理，参见 BaseTypeTransformer.Empty2NullFunction
protected com.google.common.reflect.TypeToken<F>	inputType 输入类型 F
protected TransformerContext.LocalContext	localContext
protected com.google.common.reflect.TypeToken<T>	outputType 输出类型 T
protected BaseTypeTransformer	typeTransformer

构造器概要

构造器

限定符	构造器和说明
protected	BaseFunction(BaseTypeTransformer typeTransformer)
protected	BaseFunction(BaseTypeTransformer typeTransformer, ContextProvider inputFeature, ContextProvider feature, boolean runFilter4InputIfContainer)
protected	BaseFunction(BaseTypeTransformer typeTransformer, com.google.common.reflect.TypeToken<F> leftType, com.google.common.reflect.TypeToken<T> rightType)
protected	BaseFunction(BaseTypeTransformer typeTransformer, java.lang.reflect.Type leftType, java.lang.reflect.Type rightType)

方法概要

限定符和类型	方法和说明
T	apply(F input)
protected T	apply(F input, TransformerContext.LocalContext ltx)
protected abstract T	doApply(F input, TransformerContext.LocalContext ltx, BaseTypeTransformer.BaseFunction<?,?> thisFun) 执行数据类型转换
java.lang.String	toString()

从类继承的方法 java.lang.Object

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

从接口继承的方法 com.google.common.base.Function

equals

字段详细资料

typeTransformer

protected final BaseTypeTransformer typeTransformer

inputFeature

protected final ContextProvider inputFeature

内置输入特性，用于子类定义对输入值的预处理，参见 BaseTypeTransformer.Empty2NullFunction

feature

protected final ContextProvider feature

builtinInputContext

protected final TransformerContext.LocalContext builtinInputContext

localContext

protected final TransformerContext.LocalContext localContext

inputType

protected final com.google.common.reflect.TypeToken<F> inputType

输入类型 F

outputType

protected final com.google.common.reflect.TypeToken<T> outputType

输出类型 T

构造器详细资料

BaseFunction

protected BaseFunction(BaseTypeTransformer typeTransformer,
                       ContextProvider inputFeature,
                       ContextProvider feature,
                       boolean runFilter4InputIfContainer)

BaseFunction

protected BaseFunction(BaseTypeTransformer typeTransformer)

BaseFunction

protected BaseFunction(BaseTypeTransformer typeTransformer,
                       java.lang.reflect.Type leftType,
                       java.lang.reflect.Type rightType)

BaseFunction

protected BaseFunction(BaseTypeTransformer typeTransformer,
                       com.google.common.reflect.TypeToken<F> leftType,
                       com.google.common.reflect.TypeToken<T> rightType)

方法详细资料

doApply

protected abstract T doApply(F input,
                             TransformerContext.LocalContext ltx,
                             BaseTypeTransformer.BaseFunction<?,?> thisFun)
                      throws java.lang.Exception

执行数据类型转换

参数:

input - 非null输入值

ltx - 本地上下文

thisFun - 当前转换器对象，一般情况下，该就是当前对象，但是对于代理转换器，该参数为代理转换器对象，参见 replaceOutputTypeNoEqual(TypeToken, TypeToken)

返回:

转换后的输出值

抛出:

java.lang.Exception - 转换过程可能抛出的异常

apply

public final T apply(F input)

指定者:

apply 在接口中 com.google.common.base.Function<F,T>

apply

protected final T apply(F input,
                        TransformerContext.LocalContext ltx)

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object