Package jnr.ffi

Class StructLayout.NumberField

java.lang.Object

jnr.ffi.StructLayout.Field

jnr.ffi.StructLayout.NumberField

Direct Known Subclasses:

StructLayout.Double, StructLayout.EnumField, StructLayout.Float, StructLayout.IntegerAlias, StructLayout.Pointer, StructLayout.Signed16, StructLayout.Signed32, StructLayout.Signed64, StructLayout.Signed8, StructLayout.SignedLong, StructLayout.Unsigned16, StructLayout.Unsigned32, StructLayout.Unsigned64, StructLayout.Unsigned8, StructLayout.UnsignedLong

Enclosing class:

StructLayout

protected abstract class StructLayout.NumberField
extends StructLayout.Field

Base class for all Number structure fields.

Field Summary

Fields

Modifier and Type	Field	Description
protected Type	type

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NumberField(NativeType nativeType)
protected	NumberField(NativeType nativeType, StructLayout.Offset offset)
protected	NumberField(Type type)
protected	NumberField(Type type, StructLayout.Offset offset)

Method Summary

Modifier and Type	Method	Description
byte	byteValue(Pointer ptr)	Returns a byte representation of this Number.
double	doubleValue(Pointer ptr)	Returns an float representation of this Number.
float	floatValue(Pointer ptr)	Returns an float representation of this Number.
abstract int	intValue(Pointer ptr)	Returns a int representation of this Number.
long	longValue(Pointer ptr)	Returns a long representation of this Number.
abstract void	set(Pointer ptr, java.lang.Number value)	Sets the field to a new value.
short	shortValue(Pointer ptr)	Returns a short representation of this Number.
java.lang.String	toString(Pointer ptr)	Returns a string representation of this Number.

Methods inherited from class jnr.ffi.StructLayout.Field

enclosing, offset

Methods inherited from class java.lang.Object

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

Field Detail

type

protected final Type type

Constructor Detail

NumberField

protected NumberField(NativeType nativeType)

NumberField

protected NumberField(Type type)

NumberField

protected NumberField(NativeType nativeType,
                      StructLayout.Offset offset)

NumberField

protected NumberField(Type type,
                      StructLayout.Offset offset)

Method Detail

set

public abstract void set(Pointer ptr,
                         java.lang.Number value)

Sets the field to a new value.

Parameters:

ptr - The pointer to the field.

value - The new value.

doubleValue

public double doubleValue(Pointer ptr)

Returns an float representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

an float value for this Number.

floatValue

public float floatValue(Pointer ptr)

Returns an float representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

an float value for this Number.

byteValue

public byte byteValue(Pointer ptr)

Returns a byte representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

a byte value for this Number.

shortValue

public short shortValue(Pointer ptr)

Returns a short representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

a short value for this Number.

intValue

public abstract int intValue(Pointer ptr)

Returns a int representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

a int value for this Number.

longValue

public long longValue(Pointer ptr)

Returns a long representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

a long value for this Number.

toString

public java.lang.String toString(Pointer ptr)

Returns a string representation of this Number.

Parameters:

ptr - The pointer to the field.

Returns:

a string representation of this Number.