jnr.ffi

Class Type

java.lang.Object

jnr.ffi.Type

Direct Known Subclasses:

BadType, StructLayout

public abstract class Type
extends Object

Type is the superclass for all internal types used by jnr-ffi.

Use this type to access meta-data about a native type, such as its size or natural alignment.

To obtain an instance of this class, use Runtime.findType(NativeType) or Runtime.findType(TypeAlias).

Example

 Type pointerType = runtime.findType(NativeType.ADDRESS);

    System.out.println("The size of a pointer on this platform is " + pointerType.size());
 
 

Constructor Summary

Constructors

Constructor and Description
Type()

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	alignment() The native alignment of this type, in bytes
abstract NativeType	getNativeType() The native type of this type
abstract int	size() The size in bytes of this type.

Methods inherited from class java.lang.Object

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

Constructor Detail

Type

public Type()

Method Detail

size

public abstract int size()

The size in bytes of this type.

Returns:

An integer

alignment

public abstract int alignment()

The native alignment of this type, in bytes

Returns:

An integer

getNativeType

public abstract NativeType getNativeType()

The native type of this type

Returns:

the native type of this type