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JNA API 3.2.7

com.sun.jna
Class PointerType

java.lang.Object
  
extended by com.sun.jna.PointerType
All Implemented Interfaces:
NativeMapped
Direct Known Subclasses:
ByReference

public abstract class PointerType
extends 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(Object o)
          Instances of PointerType with identical pointers compare equal by default.
 Object fromNative(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.
 Class nativeType()
          All PointerType classes represent a native Pointer.
 void setPointer(Pointer p)
           
 Object toNative()
          Convert this object to its native type (a Pointer).
 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 Class nativeType()
All PointerType classes represent a native Pointer.

Specified by:
nativeType in interface NativeMapped

toNative

public 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 Object fromNative(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 Object

equals

public boolean equals(Object o)
Instances of PointerType with identical pointers compare equal by default.

Overrides:
equals in class Object

toString

public String toString()
Overrides:
toString in class Object

JNA API 3.2.7

Copyright © 2007-2010 Timothy Wall. All Rights Reserved.
 
 
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