Package 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:

  • Field Details

    • SIGNATURES

      static final byte[] SIGNATURES
      Primitive signatures. Indexes match the values of IObject.Type
      See Also:

    • ELEMENT_SIZE

      static final int[] ELEMENT_SIZE
      Element sizes inside the array. Indexes match the values of IObject.Type
      See Also:

    • TYPE

      static final String[] TYPE
      Display string of the type. Indexes match the values of IObject.Type
      See Also:

    • COMPONENT_TYPE

      static final Class<?>[] COMPONENT_TYPE
      Java component type of the primitive array. Indexes match the values of IObject.Type
      See Also:

  • Method Details

    • getType

      int getType()
      Returns the IObject.Type of the primitive array.
      Returns:
      the type

    • getComponentType

      Class<?> getComponentType()
      Returns the component type of the array.
      Returns:
      the Java class of the component type

    • 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.
      Returns:
      the contents of the primitive array

    • 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.

      Parameters:
      offset - the starting index
      length - the number of entries
      Returns:
      the contents of the primitive array starting at the index for length entries