Java Doc for StreamFileContainerHandle.java in  » Database-DBMS » db-derby-10.2 » org » apache » derby » impl » store » raw » data » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.impl.store.raw.data 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.derby.impl.store.raw.data.StreamFileContainerHandle

StreamFileContainerHandle
final class StreamFileContainerHandle implements StreamContainerHandle,Observer(Code)
A handle to an open stream container, implememts StreamContainerHandle.

This class is an Observer to observe RawTransactions
MT - Mutable - Immutable identity - Thread Aware



Field Summary
protected  booleanactive
     Is this StreamContainerHandle active.
protected  StreamFileContainercontainer
     The actual container we are accessing.
final protected  ContainerKeyidentity
    
protected  RawTransactionxact
     our transaction.

Constructor Summary
public  StreamFileContainerHandle(UUID rawStoreId, RawTransaction xact, ContainerKey identity, boolean hold)
    
public  StreamFileContainerHandle(UUID rawStoreId, RawTransaction xact, StreamFileContainer container, boolean hold)
    

Method Summary
public  voidclose()
    
public  booleanfetchNext(DataValueDescriptor[] row)
     fetch a row from the container.
public  voidgetContainerProperties(Properties prop)
     Request the system properties associated with a container.
public  ContainerKeygetId()
    
final public  RawTransactiongetTransaction()
     Return the RawTransaction this object was opened in.
public  voidremoveContainer()
    
public  StringtoString()
    
public  voidupdate(Observable obj, Object arg)
     Called when the transaction is about to complete.
public  booleanuseContainer()
     Attach me to a container.

Field Detail
active
protected boolean active(Code)
Is this StreamContainerHandle active.
MT - Mutable : scoped



container
protected StreamFileContainer container(Code)
The actual container we are accessing. Only valid when active is true.
MT - Mutable : scoped



identity
final protected ContainerKey identity(Code)
Container identifier
MT - Immutable



xact
protected RawTransaction xact(Code)
our transaction. Only valid when active is true.
MT - Mutable : scoped




Constructor Detail
StreamFileContainerHandle
public StreamFileContainerHandle(UUID rawStoreId, RawTransaction xact, ContainerKey identity, boolean hold)(Code)



StreamFileContainerHandle
public StreamFileContainerHandle(UUID rawStoreId, RawTransaction xact, StreamFileContainer container, boolean hold)(Code)




Method Detail
close
public void close()(Code)

See Also:   StreamContainerHandle.close
exception:
  StandardException - Standard exception policy.



fetchNext
public boolean fetchNext(DataValueDescriptor[] row) throws StandardException(Code)
fetch a row from the container.
exception:
  StandardException - Standard exception policy.



getContainerProperties
public void getContainerProperties(Properties prop) throws StandardException(Code)
Request the system properties associated with a container.
See Also:   StreamContainerHandle.getContainerProperties
Parameters:
  prop - Property list to fill in.
exception:
  StandardException - Standard exception policy.



getId
public ContainerKey getId()(Code)
get the container key for the stream container



getTransaction
final public RawTransaction getTransaction()(Code)
Return the RawTransaction this object was opened in.



removeContainer
public void removeContainer() throws StandardException(Code)
remove the stream container
exception:
  StandardException - Standard Cloudscape error policy
See Also:   StreamContainerHandle.removeContainer



toString
public String toString()(Code)



update
public void update(Observable obj, Object arg)(Code)
Called when the transaction is about to complete.
See Also:   Observer.update



useContainer
public boolean useContainer() throws StandardException(Code)
Attach me to a container. If this method returns false then I cannot be used anymore, and any reference to me must be discarded.
exception:
  StandardException - Standard Cloudscape error policy



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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