Package org.eclipse.mat.parser.model

Class PrimitiveArrayImpl

java.lang.Object
org.eclipse.mat.parser.model.AbstractObjectImpl
org.eclipse.mat.parser.model.AbstractArrayImpl
org.eclipse.mat.parser.model.PrimitiveArrayImpl
All Implemented Interfaces:
Serializable, IArray, IObject, IPrimitiveArray
public class PrimitiveArrayImpl extends AbstractArrayImpl implements IPrimitiveArray
Implementation of a primitive array of type byte[], short[], int[], long[], boolean, char[], float[], double[].
See Also:
No Extend:

  • Constructor Details

    • PrimitiveArrayImpl

      public PrimitiveArrayImpl(int objectId, long address, ClassImpl classInstance, int length, int type)
      Constructs a primitive array
      Parameters:
      objectId - the id of the array
      address - the address of the array
      classInstance - the type (class) of the array
      length - the length in elements
      type - the actual type IObject.Type

  • Method Details

    • getType

      public int getType()
      Description copied from interface: IPrimitiveArray
      Returns the IObject.Type of the primitive array.
      Specified by:
      getType in interface IPrimitiveArray
      Returns:
      the type

    • getComponentType

      public Class<?> getComponentType()
      Description copied from interface: IPrimitiveArray
      Returns the component type of the array.
      Specified by:
      getComponentType in interface IPrimitiveArray
      Returns:
      the Java class of the component type

    • getValueAt

      public Object getValueAt(int index)
      Description copied from interface: IPrimitiveArray
      Returns the value of the array at the specified index
      Specified by:
      getValueAt in interface IPrimitiveArray
      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

      public Object getValueArray()
      Description copied from interface: IPrimitiveArray
      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.
      Specified by:
      getValueArray in interface IPrimitiveArray
      Returns:
      the contents of the primitive array

    • getValueArray

      public Object getValueArray(int offset, int length)
      Description copied from interface: IPrimitiveArray
      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.

      Specified by:
      getValueArray in interface IPrimitiveArray
      Parameters:
      offset - the starting index
      length - the number of entries
      Returns:
      the contents of the primitive array starting at the index for length entries

    • getReferences

      public ArrayLong getReferences()
      Description copied from class: AbstractObjectImpl
      Gets the outbound references from this object, as addresses.
      Specified by:
      getReferences in class AbstractObjectImpl
      Returns:
      a list of outbound references

    • getOutboundReferences

      public List<NamedReference> getOutboundReferences()
      Description copied from interface: IObject
      Get list of snapshot objects referenced from this snapshot object with the name of the field over which it was referenced.
      Specified by:
      getOutboundReferences in interface IObject
      Returns:
      list of snapshot objects referenced from this snapshot object with the name of the field over which it was referenced

    • getUsedHeapSize

      public long getUsedHeapSize()
      Description copied from interface: IObject
      Get used heap size of just this object.
      Specified by:
      getUsedHeapSize in interface IObject
      Specified by:
      getUsedHeapSize in class AbstractObjectImpl
      Returns:
      used heap size of this object

    • doGetUsedHeapSize

      public static long doGetUsedHeapSize(ClassImpl clazz, int length, int type)
      Calculates the size of a primitive array
      Parameters:
      clazz - the type
      length - the length in elements
      type - the actual type IObject.Type
      Returns:
      the size in bytes
      Since:
      1.0