Package org.eclipse.mat.parser.index
Class IndexReader.LongIndexReader
java.lang.Object
org.eclipse.mat.parser.index.IndexReader.LongIndexReader
- All Implemented Interfaces:
IIndexReader,IIndexReader.IOne2LongIndex
- Enclosing class:
- IndexReader
public static class IndexReader.LongIndexReader
extends Object
implements IIndexReader.IOne2LongIndex
Creates a int to long index reader
Disk file structure:
Page 0: ArrayLongCompressed Page 1: ArrayLongCompressed ... Page n: ArrayLongCompressed page 0 start in file (8) page 1 start in file (8) ... page n start in file (8) page n+1 start in file (8) (i.e. location of 'page 0 start in file' field) page size (4) total size (4)
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Nested Class Summary
Nested classes/interfaces inherited from interface org.eclipse.mat.parser.index.IIndexReader
IIndexReader.IOne2LongIndex, IIndexReader.IOne2ManyIndex, IIndexReader.IOne2ManyObjectsIndex, IIndexReader.IOne2OneIndex, IIndexReader.IOne2SizeIndex -
Constructor Summary
ConstructorsConstructorDescriptionLongIndexReader(File indexFile) LongIndexReader(File indexFile, HashMapIntObject<Object> pages, int size, int pageSize, long[] pageStart) -
Method Summary
Modifier and TypeMethodDescriptionvoidclose()Close the backing file.voiddelete()Delete the backing file.longget(int index) long[]getNext(int index, int length) iterator()intreverse(long value) Find the int corresponding to the long in the index value.voidset(int index, long value) intsize()voidunload()Clear the caches.Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.eclipse.mat.parser.index.IIndexReader
sizeMethods inherited from interface org.eclipse.mat.parser.index.IIndexReader.IOne2LongIndex
get, getNext
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Constructor Details
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LongIndexReader
public LongIndexReader(File indexFile, HashMapIntObject<Object> pages, int size, int pageSize, long[] pageStart) throws IOException - Throws:
IOException
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LongIndexReader
- Throws:
IOException
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Method Details
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close
public void close()Description copied from interface:IIndexReaderClose the backing file.- Specified by:
closein interfaceIIndexReader
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reverse
public int reverse(long value) Description copied from interface:IIndexReader.IOne2LongIndexFind the int corresponding to the long in the index value. The reverse ofIIndexReader.IOne2LongIndex.get(int)- Specified by:
reversein interfaceIIndexReader.IOne2LongIndex- Parameters:
value- the value to look up- Returns:
- the correspond int key in the index
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unload
public void unload()Description copied from interface:IIndexReaderClear the caches. Used when the indexes are not current in use and the memory needs to be reclaimed such as when building the dominator tree.- Specified by:
unloadin interfaceIIndexReader
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delete
public void delete()Description copied from interface:IIndexReaderDelete the backing file.- Specified by:
deletein interfaceIIndexReader
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get
public long get(int index) -
getNext
public long[] getNext(int index, int length) -
set
public void set(int index, long value) -
size
public int size() -
iterator
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