Package com.helger.commons.state

Class SuccessWithValue<DATATYPE>

java.lang.Object

com.helger.commons.state.SuccessWithValue<DATATYPE>

Type Parameters:

DATATYPE - The data type that is wrapped together with the success indicator

All Implemented Interfaces:

ISuccessIndicator, IWrapper<DATATYPE>, Supplier<DATATYPE>

@Immutable
public class SuccessWithValue<DATATYPE>
extends Object
implements ISuccessIndicator, IWrapper<DATATYPE>

Wraps a success indicator and an arbitrary value.

Author:

Philip Helger

Constructor Summary

Constructors

Constructor	Description
SuccessWithValue(ISuccessIndicator aSuccessIndicator)	Constructor
SuccessWithValue(ISuccessIndicator aSuccessIndicator, DATATYPE aObj)	Constructor

Method Summary

Modifier and Type	Method	Description
static <DATATYPE> SuccessWithValue<DATATYPE>	create(ISuccessIndicator aSuccessIndicator, DATATYPE aValue)	Create a new object with the given value.
static <DATATYPE> SuccessWithValue<DATATYPE>	createFailure(DATATYPE aValue)	Create a new failure object with the given value.
static <DATATYPE> SuccessWithValue<DATATYPE>	createSuccess(DATATYPE aValue)	Create a new success object with the given value.
boolean	equals(Object o)
DATATYPE	get()
DATATYPE	getIfFailure(DATATYPE aSuccessValue)	Get the store value if this is a failure.
DATATYPE	getIfFailureOrNull()	Get the store value if this is a failure.
DATATYPE	getIfSuccess(DATATYPE aFailureValue)	Get the store value if this is a success.
DATATYPE	getIfSuccessOrNull()	Get the store value if this is a success.
int	hashCode()
boolean	isSuccess()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.helger.commons.state.ISuccessIndicator

and, isFailure, or

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

isNotSet, isSet

Constructor Detail

SuccessWithValue

public SuccessWithValue(@Nonnull
                        ISuccessIndicator aSuccessIndicator)

Constructor

Parameters:

aSuccessIndicator - The success indicator. May not be null.

SuccessWithValue

public SuccessWithValue(@Nonnull
                        ISuccessIndicator aSuccessIndicator,
                        @Nullable
                        DATATYPE aObj)

Constructor

Parameters:

aSuccessIndicator - The success indicator. May not be null.

aObj - The assigned value. May be null.

Method Detail

isSuccess

public boolean isSuccess()

Specified by:

isSuccess in interface ISuccessIndicator

Returns:

true on success and false on failure.

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.

getIfSuccess

@Nullable
public DATATYPE getIfSuccess(@Nullable
                             DATATYPE aFailureValue)

Get the store value if this is a success. Otherwise the passed failure value is returned.

Parameters:

aFailureValue - The failure value to be used. May be null.

Returns:

Either the stored value or the failure value. May be null.

getIfSuccessOrNull

@Nullable
public DATATYPE getIfSuccessOrNull()

Get the store value if this is a success. Otherwise null is returned.

Returns:

Either the stored value or null.

getIfFailure

@Nullable
public DATATYPE getIfFailure(@Nullable
                             DATATYPE aSuccessValue)

Get the store value if this is a failure. Otherwise the passed success value is returned.

Parameters:

aSuccessValue - The failure value to be used. May be null.

Returns:

Either the stored value or the failure value. May be null.

getIfFailureOrNull

@Nullable
public DATATYPE getIfFailureOrNull()

Get the store value if this is a failure. Otherwise null is returned.

Returns:

Either the stored value or null.

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

create

@Nonnull
public static <DATATYPE> SuccessWithValue<DATATYPE> create(@Nonnull
                                                           ISuccessIndicator aSuccessIndicator,
                                                           @Nullable
                                                           DATATYPE aValue)

Create a new object with the given value.

Type Parameters:

DATATYPE - The data type that is wrapped together with the success indicator

Parameters:

aSuccessIndicator - The success indicator. May not be null.

aValue - The value to be used. May be null.

Returns:

Never null.

createSuccess

@Nonnull
public static <DATATYPE> SuccessWithValue<DATATYPE> createSuccess(@Nullable
                                                                  DATATYPE aValue)

Create a new success object with the given value.

Type Parameters:

DATATYPE - The data type that is wrapped together with the success indicator

Parameters:

aValue - The value to be used. May be null.

Returns:

Never null.

createFailure

@Nonnull
public static <DATATYPE> SuccessWithValue<DATATYPE> createFailure(@Nullable
                                                                  DATATYPE aValue)

Create a new failure object with the given value.

Type Parameters:

DATATYPE - The data type that is wrapped together with the success indicator

Parameters:

aValue - The value to be used. May be null.

Returns:

Never null.