jnr.ffi

Class NativeLong

java.lang.Object

java.lang.Number

jnr.ffi.NativeLong

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<NativeLong>

public final class NativeLong
extends java.lang.Number
implements java.lang.Comparable<NativeLong>

Represents a C long.

In C, a long can be either 32 bits or 64bits, depending on the platform.

Replace any function parameters which are long in the C definition with a NativeLong.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	NativeLong.Cache Internal cache of common native long values

Field Summary

Fields

Modifier and Type	Field and Description
private static NativeLong	MINUS_ONE
private static NativeLong	ONE
private long	value
private static NativeLong	ZERO

Constructor Summary

Constructors

Constructor and Description
NativeLong(int value) Creates a new NativeLong instance with the supplied value.
NativeLong(long value) Creates a new NativeLong instance with the supplied value.

Method Summary

Modifier and Type	Method and Description
private static NativeLong	_valueOf(int value)
private static NativeLong	_valueOf(long value)
int	compareTo(NativeLong other) Compares two NativeLong instances numerically.
double	doubleValue() Returns an double representation of this NativeLong.
boolean	equals(java.lang.Object obj) Compares this NativeLong to another NativeLong.
float	floatValue() Returns an float representation of this NativeLong.
int	hashCode() Gets a hash code for this NativeLong.
int	intValue() Returns an integer representation of this NativeLong.
long	longValue() Returns an long representation of this NativeLong.
java.lang.String	toString() Returns a string representation of this NativeLong.
static NativeLong	valueOf(int value) Returns a NativeLong instance representing the specified int value
static NativeLong	valueOf(long value) Returns a NativeLong instance representing the specified long value

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Field Detail

ZERO

private static final NativeLong ZERO

ONE

private static final NativeLong ONE

MINUS_ONE

private static final NativeLong MINUS_ONE

value

private final long value

Constructor Detail

NativeLong

public NativeLong(long value)

Creates a new NativeLong instance with the supplied value.

Parameters:

value - a long or integer.

NativeLong

public NativeLong(int value)

Creates a new NativeLong instance with the supplied value.

Parameters:

value - an integer.

Method Detail

intValue

public final int intValue()

Returns an integer representation of this NativeLong.

Specified by:

intValue in class java.lang.Number

Returns:

an integer value for this NativeLong.

longValue

public final long longValue()

Returns an long representation of this NativeLong.

Specified by:

longValue in class java.lang.Number

Returns:

an long value for this NativeLong.

floatValue

public final float floatValue()

Returns an float representation of this NativeLong.

Specified by:

floatValue in class java.lang.Number

Returns:

an float value for this NativeLong.

doubleValue

public final double doubleValue()

Returns an double representation of this NativeLong.

Specified by:

doubleValue in class java.lang.Number

Returns:

an double value for this NativeLong.

hashCode

public final int hashCode()

Gets a hash code for this NativeLong.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code for this NativeLong.

equals

public final boolean equals(java.lang.Object obj)

Compares this NativeLong to another NativeLong.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the other NativeLong to compare to.

Returns:

true if this NativeLong is equal to the other NativeLong, else false.

toString

public java.lang.String toString()

Returns a string representation of this NativeLong.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of this NativeLong.

compareTo

public final int compareTo(NativeLong other)

Compares two NativeLong instances numerically.

Specified by:

compareTo in interface java.lang.Comparable<NativeLong>

Parameters:

other - the other NativeLong to compare to.

Returns:

0 if other is equal to this instance, -1 if this instance is numerically less than other or 1 if this instance is numerically greater than other.

_valueOf

private static NativeLong _valueOf(long value)

_valueOf

private static NativeLong _valueOf(int value)

valueOf

public static NativeLong valueOf(long value)

Returns a NativeLong instance representing the specified long value

Parameters:

value - a long value

Returns:

a NativeLong instance representing value

valueOf

public static NativeLong valueOf(int value)

Returns a NativeLong instance representing the specified int value

Parameters:

value - a 32bit integer value

Returns:

a NativeLong instance representing value