NativeArrayKernel Class Reference

A computational kernel for multidimensional array operations. More...

#include <NativeArrayKernel.hpp>

Static Public Member Functions
static jboolean	isJintArray (JNIEnv *env, jobject obj)
	Gets whether the given object is of type int[]. More...
static jboolean	isJdoubleArray (JNIEnv *env, jobject obj)
	Gets whether the given object is of type double[]. More...
static jboolean	isAssignableFrom (JNIEnv *env, jclass to, jclass from)
	Gets whether one type is assignable from another. More...
static jclass	getComponentType (JNIEnv *env, jclass clazz)
	Gets the component type of the given array type. More...
static jobjectArray	newArray (JNIEnv *env, jclass clazz, jint len)
	Creates a Java array of type Object[]. More...
static jobject	newSparseArrayState (JNIEnv *env, jarray values, jintArray indices, jintArray indirectionOffsets, jintArray indirections)
	Creates a sparse array. More...
static ArrayPinHandler::jarray_type	getArrayType (JNIEnv *env, jobject srcV, jobject dstV)
	Extracts the common array type. More...
static void	init (JNIEnv *env)
	Initializes the kernel. More...
static void	destroy (JNIEnv *env)
	Destroys the kernel. More...

Detailed Description

A computational kernel for multidimensional array operations.

Member Function Documentation

void NativeArrayKernel::destroy ( JNIEnv *  env )

static

Destroys the kernel.

Parameters

env	the JNI environment.

ArrayPinHandler::jarray_type NativeArrayKernel::getArrayType ( JNIEnv *  env, jobject  srcV, jobject  dstV  )

static

Extracts the common array type.

Parameters

env	the JNI environment.
srcV	the nominal source values.
dstV	the nominal destination values.

Returns

the common array type.

jclass NativeArrayKernel::getComponentType ( JNIEnv *  env, jclass  clazz  )

static

Gets the component type of the given array type.

Parameters

env	the JNI environment.
clazz	the array type.

Returns

the component type.

void NativeArrayKernel::init ( JNIEnv *  env )

static

Initializes the kernel.

Parameters

env	the JNI environment.

jboolean NativeArrayKernel::isAssignableFrom ( JNIEnv *  env, jclass  to, jclass  from  )

static

Gets whether one type is assignable from another.

Parameters

env	the JNI environment.
to	the assignee.
from	the assigner.

Returns

true if and only if the LHS is a superclass of the RHS.

jboolean NativeArrayKernel::isJdoubleArray ( JNIEnv *  env, jobject  obj  )

static

Gets whether the given object is of type double[].

Parameters

env	the JNI environment.
obj	the object.

Returns

true if and only if the object is of type double[].

jboolean NativeArrayKernel::isJintArray ( JNIEnv *  env, jobject  obj  )

static

Gets whether the given object is of type int[].

Parameters

env	the JNI environment.
obj	the object.

Returns

true if and only if the object is of type int[].

jobjectArray NativeArrayKernel::newArray ( JNIEnv *  env, jclass  clazz, jint  len  )

static

Creates a Java array of type Object[].

Parameters

env	the JNI environment.
clazz	the component type.
len	the length.

Returns

the newly allocated Object array.

jobject NativeArrayKernel::newSparseArrayState ( JNIEnv *  env, jarray  values, jintArray  indices, jintArray  indirectionOffsets, jintArray  indirections  )

static

Creates a sparse array.

Parameters

env	the JNI environment.
values	the storage array.
indices	the physical indices.
indirectionOffsets	the offsets into the indirections.
indirections	the indirection indices.

Returns

the sparse array.