Package org.eclipse.mat.snapshot.model
Interface IPrimitiveArray
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- All Known Implementing Classes:
PrimitiveArrayImpl
public interface IPrimitiveArray extends IArray
Interface for primitive arrays in the heap dump.- No Implement:
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.eclipse.mat.snapshot.model.IObject
IObject.Type
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Field Summary
Fields Modifier and Type Field Description static java.lang.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 java.lang.String[]
TYPE
Display string of the type.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.Class<?>
getComponentType()
Returns the component type of the array.int
getType()
Returns theIObject.Type
of the primitive array.java.lang.Object
getValueArray()
Get the primitive Java array.java.lang.Object
getValueArray(int offset, int length)
Get the primitive Java array, beginning atoffset
andlength
number of elements.java.lang.Object
getValueAt(int index)
Returns the value of the array at the specified index-
Methods inherited from interface org.eclipse.mat.snapshot.model.IObject
getClassSpecificName, getClazz, getDisplayName, getGCRootInfo, getObjectAddress, getObjectId, getOutboundReferences, getRetainedHeapSize, getSnapshot, getTechnicalName, getUsedHeapSize, resolveValue
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Field Detail
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SIGNATURES
static final byte[] SIGNATURES
Primitive signatures. Indexes match the values ofIObject.Type
- See Also:
IObject.Type
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ELEMENT_SIZE
static final int[] ELEMENT_SIZE
Element sizes inside the array. Indexes match the values ofIObject.Type
- See Also:
IObject.Type
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TYPE
static final java.lang.String[] TYPE
Display string of the type. Indexes match the values ofIObject.Type
- See Also:
IObject.Type
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COMPONENT_TYPE
static final java.lang.Class<?>[] COMPONENT_TYPE
Java component type of the primitive array. Indexes match the values ofIObject.Type
- See Also:
IObject.Type
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Method Detail
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getType
int getType()
Returns theIObject.Type
of the primitive array.- Returns:
- the type
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getComponentType
java.lang.Class<?> getComponentType()
Returns the component type of the array.- Returns:
- the Java class of the component type
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getValueAt
java.lang.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
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getValueArray
java.lang.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
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getValueArray
java.lang.Object getValueArray(int offset, int length)
Get the primitive Java array, beginning atoffset
andlength
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 indexlength
- the number of entries- Returns:
- the contents of the primitive array starting at the index for length entries
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