org.eclipse.mat.snapshot.model

Interface IPrimitiveArray

All Superinterfaces:

IArray, IObject, Serializable

All Known Implementing Classes:

PrimitiveArrayImpl

public interface IPrimitiveArray
extends IArray

Interface for primitive arrays in the heap dump.

No Implement:

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.mat.snapshot.model.IObject

IObject.Type

Field Summary

Fields

Modifier and Type	Field and Description
static Class<?>[]	COMPONENT_TYPE Java component type of the primitive array.
static int[]	ELEMENT_SIZE Element sizes inside the array.
static byte[]	SIGNATURES Primitive signatures.
static String[]	TYPE Display string of the type.

Method Summary

Modifier and Type	Method and Description
Class<?>	getComponentType() Returns the component type of the array.
int	getType() Returns the IObject.Type of the primitive array.
Object	getValueArray() Get the primitive Java array.
Object	getValueArray(int offset, int length) Get the primitive Java array, beginning at offset and length number of elements.
Object	getValueAt(int index) Returns the value of the array at the specified index

Methods inherited from interface org.eclipse.mat.snapshot.model.IArray

getLength

Methods inherited from interface org.eclipse.mat.snapshot.model.IObject

getClassSpecificName, getClazz, getDisplayName, getGCRootInfo, getObjectAddress, getObjectId, getOutboundReferences, getRetainedHeapSize, getSnapshot, getTechnicalName, getUsedHeapSize, resolveValue

Field Detail

SIGNATURES

static final byte[] SIGNATURES

Primitive signatures. Indexes match the values of IObject.Type

See Also:

IObject.Type

ELEMENT_SIZE

static final int[] ELEMENT_SIZE

Element sizes inside the array. Indexes match the values of IObject.Type

See Also:

IObject.Type

TYPE

static final String[] TYPE

Display string of the type. Indexes match the values of IObject.Type

See Also:

IObject.Type

COMPONENT_TYPE

static final Class<?>[] COMPONENT_TYPE

Java component type of the primitive array. Indexes match the values of IObject.Type

See Also:

IObject.Type

Method Detail

getType

int getType()

Returns the IObject.Type of the primitive array.

getComponentType

Class<?> getComponentType()

Returns the component type of the array.

getValueAt

Object getValueAt(int index)

Returns the value of the array at the specified index

Parameters:

index - from 0 to length-1

Returns:

Byte - for a byte array Short - for a short array Integer - for an int array Long - for a long array Boolean - for a boolean array Char - for a char array Float - for a float array Double - for a double array

getValueArray

Object getValueArray()

Get the primitive Java array. The return value can be cast into the correct component type, e.g.

 if (char.class == array.getComponentType())
 {
     char[] content = (char[]) array.getValueArray();
     System.out.println(content.length);
 }
 

The return value must not be modified because it is cached by the heap dump adapter. This method does not return a copy of the array for performance reasons.

getValueArray

Object getValueArray(int offset,
                     int length)

Get the primitive Java array, beginning at offset and length number of elements.

The return value must not be modified because it is cached by the heap dump adapter. This method does not return a copy of the array for performance reasons.