com.helger.commons.wrapper

Class Wrapper<DATATYPE>

java.lang.Object

com.helger.commons.wrapper.Wrapper<DATATYPE>

Type Parameters:

DATATYPE - The type of object to be wrapped.

All Implemented Interfaces:

ICloneable<Wrapper<DATATYPE>>, IMutableWrapper<DATATYPE>, IWrapper<DATATYPE>, Supplier<DATATYPE>

@NotThreadSafe
public class Wrapper<DATATYPE>
extends Object
implements IMutableWrapper<DATATYPE>, ICloneable<Wrapper<DATATYPE>>

This is a stupid wrapper around any object. Its original purpose was the encapsulation of return values from within an anonymous class.

Author:

Philip Helger

Constructor Summary

Constructors

Constructor and Description
Wrapper() Default constructor.
Wrapper(DATATYPE aObj) Constructor with an existing object.
Wrapper(IWrapper<DATATYPE> aRhs) Copy constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
DATATYPE	get()
Wrapper<DATATYPE>	getClone()
int	hashCode()
EChange	set(DATATYPE aObj) Change the wrapped object.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.helger.commons.wrapper.IWrapper

isNotSet, isSet

Constructor Detail

Wrapper

public Wrapper()

Default constructor. Wraps a null values.

Wrapper

public Wrapper(@Nullable
               DATATYPE aObj)

Constructor with an existing object.

Parameters:

aObj - The existing object. May be null.

Wrapper

public Wrapper(@Nonnull
               IWrapper<DATATYPE> aRhs)

Copy constructor. Only takes wrappers of the same type.

Parameters:

aRhs - The other wrapper to use. May not be null.

Method Detail

get

@Nullable
public DATATYPE get()

Specified by:

get in interface IWrapper<DATATYPE>

Specified by:

get in interface Supplier<DATATYPE>

Returns:

The currently wrapped object. May be null.

set

@Nonnull
public EChange set(@Nullable
                             DATATYPE aObj)

Description copied from interface: IMutableWrapper

Change the wrapped object.

Specified by:

set in interface IMutableWrapper<DATATYPE>

Parameters:

aObj - The new object to be wrapped. May be null.

Returns:

EChange

getClone

@Nonnull
 @ReturnsMutableCopy
public Wrapper<DATATYPE> getClone()

Specified by:

getClone in interface ICloneable<Wrapper<DATATYPE>>

Returns:

A 100% deep-copy of the implementing class.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object