Java Doc for PhysicalRowId.java in  » Database-DBMS » JDBM » jdbm » recman » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » JDBM » jdbm.recman 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   jdbm.recman.PhysicalRowId

All known Subclasses:   jdbm.recman.FreePhysicalRowId,
PhysicalRowId
class PhysicalRowId (Code)
A physical rowid is nothing else than a pointer to a physical location in a file - a (block, offset) tuple.

Note: The fact that the offset is modelled as a short limits the block size to 32k.



Field Summary
final static  intSIZE
    
 BlockIoblock
    
 shortpos
    

Constructor Summary
 PhysicalRowId(BlockIo block, short pos)
     Constructs a physical rowid from the indicated data starting at the indicated position.

Method Summary
 longgetBlock()
    
 shortgetOffset()
    
 voidsetBlock(long value)
    
 voidsetOffset(short value)
    

Field Detail
SIZE
final static int SIZE(Code)



block
BlockIo block(Code)



pos
short pos(Code)




Constructor Detail
PhysicalRowId
PhysicalRowId(BlockIo block, short pos)(Code)
Constructs a physical rowid from the indicated data starting at the indicated position.




Method Detail
getBlock
long getBlock()(Code)
Returns the block number



getOffset
short getOffset()(Code)
Returns the offset



setBlock
void setBlock(long value)(Code)
Sets the block number



setOffset
void setOffset(short value)(Code)
Sets the offset



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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