com.sun.jna
Class PointerType

java.lang.Object
  com.sun.jna.PointerType

All Implemented Interfaces:

NativeMapped

Direct Known Subclasses:

ByReference

public abstract class PointerType
extends java.lang.Object
implements NativeMapped

Type representing a type-safe native pointer. Derived classes may override the NativeMapped.fromNative(java.lang.Object, com.sun.jna.FromNativeContext) method, which should instantiate a new object (or look up an existing one) of the appropriate type.

Constructor Summary

protected	PointerType() The default constructor wraps a NULL pointer.
protected	PointerType(Pointer p) This constructor is typically used by fromNative(java.lang.Object, com.sun.jna.FromNativeContext) if generating a new object instance.

Method Summary

boolean	equals(java.lang.Object o) Instances of PointerType with identical pointers compare equal by default.
java.lang.Object	fromNative(java.lang.Object nativeValue, FromNativeContext context) The default implementation simply creates a new instance of the class and assigns its pointer field.
Pointer	getPointer() Returns the associated native Pointer.
int	hashCode() The hash code for a PointerType is the same as that for its pointer.
java.lang.Class	nativeType() All PointerType classes represent a native Pointer.
void	setPointer(Pointer p)
java.lang.Object	toNative() Convert this object to its native type (a Pointer).
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PointerType

protected PointerType()

The default constructor wraps a NULL pointer.

PointerType

protected PointerType(Pointer p)

This constructor is typically used by fromNative(java.lang.Object, com.sun.jna.FromNativeContext) if generating a new object instance.

Method Detail

nativeType

public java.lang.Class nativeType()

All PointerType classes represent a native Pointer.

Specified by:

nativeType in interface NativeMapped

toNative

public java.lang.Object toNative()

Convert this object to its native type (a Pointer).

Specified by:

toNative in interface NativeMapped

getPointer

public Pointer getPointer()

Returns the associated native Pointer.

setPointer

public void setPointer(Pointer p)

fromNative

public java.lang.Object fromNative(java.lang.Object nativeValue,
                                   FromNativeContext context)

The default implementation simply creates a new instance of the class and assigns its pointer field. Override if you need different behavior, such as ensuring a single PointerType instance for each unique Pointer value, or instantiating a different PointerType subclass.

Specified by:

fromNative in interface NativeMapped

hashCode

public int hashCode()

The hash code for a PointerType is the same as that for its pointer.

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Instances of PointerType with identical pointers compare equal by default.

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object