com.google.common.base

Class Converter.FunctionBasedConverter<A,B>

java.lang.Object

com.google.common.base.Converter<A,B>

com.google.common.base.Converter.FunctionBasedConverter<A,B>

All Implemented Interfaces:

java.io.Serializable, java.util.function.Function<A,B>

Enclosing class:

Converter<A,B>

private static final class Converter.FunctionBasedConverter<A,B>
extends Converter<A,B>
implements java.io.Serializable

Field Summary

Fields

Modifier and Type	Field and Description
private Function<? super B,? extends A>	backwardFunction
private Function<? super A,? extends B>	forwardFunction

Constructor Summary

Constructors

Modifier	Constructor and Description
private	FunctionBasedConverter(Function<? super A,? extends B> forwardFunction, Function<? super B,? extends A> backwardFunction)

Method Summary

Modifier and Type	Method and Description
protected A	doBackward(B b) Returns a representation of b as an instance of type A.
protected B	doForward(A a) Returns a representation of a as an instance of type B.
boolean	equals(java.lang.Object object) Indicates whether another object is equal to this converter.
int	hashCode()
java.lang.String	toString()

Methods inherited from class com.google.common.base.Converter

andThen, apply, convert, convertAll, correctedDoBackward, correctedDoForward, doAndThen, from, identity, reverse

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, compose

Field Detail

forwardFunction

private final Function<? super A,? extends B> forwardFunction

backwardFunction

private final Function<? super B,? extends A> backwardFunction

Constructor Detail

FunctionBasedConverter

private FunctionBasedConverter(Function<? super A,? extends B> forwardFunction,
                               Function<? super B,? extends A> backwardFunction)

Method Detail

doForward

protected B doForward(A a)

Description copied from class: Converter

Returns a representation of a as an instance of type B. If a cannot be converted, an unchecked exception (such as IllegalArgumentException) should be thrown.

Specified by:

doForward in class Converter<A,B>

Parameters:

a - the instance to convert; will never be null

Returns:

the converted instance; must not be null

doBackward

protected A doBackward(B b)

Description copied from class: Converter

Returns a representation of b as an instance of type A. If b cannot be converted, an unchecked exception (such as IllegalArgumentException) should be thrown.

Specified by:

doBackward in class Converter<A,B>

Parameters:

b - the instance to convert; will never be null

Returns:

the converted instance; must not be null

equals

public boolean equals(java.lang.Object object)

Description copied from class: Converter

Indicates whether another object is equal to this converter.

Most implementations will have no reason to override the behavior of Object.equals(java.lang.Object). However, an implementation may also choose to return true whenever object is a Converter that it considers interchangeable with this one. "Interchangeable" typically means that Objects.equal(this.convert(a), that.convert(a)) is true for all a of type A (and similarly for reverse). Note that a false result from this method does not imply that the converters are known not to be interchangeable.

Overrides:

equals in class Converter<A,B>

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object