Java Doc for ScanHandle.java in » Database-DBMS » db-derby-10.2 » org » apache » derby » iapi » store » raw » 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.iapi.store.raw

Source Cross Reference

Class Diagram

Java Document (Java Doc)

org.apache.derby.iapi.store.raw .ScanHandle

All known Subclasses:   org.apache.derby.impl.store.raw.log .FlushedScanHandle,
ScanHandle
public interface ScanHandle (Code)
Inteface for scanning the log from outside the RawStore.

Method Summary
public void close()
     Close this scan.
public int getGroup()
     Get the group for the current log record.
public DatabaseInstant getInstant()
     Get the DatabaseInstant for the current log record.
public Loggable getLoggable()

public InputStream getOptionalData()
     Get an InputStream for reading the optional data associated with the current log record.
public Object getTransactionId()
     Get the TransactionId for the current log record.
public boolean next()
     Position to the next log record.

Method Detail
close
public void close()(Code)
Close this scan.

getGroup
public int getGroup() throws StandardException(Code)
Get the group for the current log record.
exception:
  StandardException - Oops

getInstant
public DatabaseInstant getInstant() throws StandardException(Code)
Get the DatabaseInstant for the current log record.
exception:
  StandardException - Oops

getLoggable
public Loggable getLoggable() throws StandardException(Code)
Get the Loggable associated with the currentLogRecord
exception:
  StandardException - Oops

getOptionalData
public InputStream getOptionalData() throws StandardException(Code)
Get an InputStream for reading the optional data associated with the current log record. This may only be called once per log record.
exception:
  StandardException - Oops

getTransactionId
public Object getTransactionId() throws StandardException(Code)
Get the TransactionId for the current log record.
exception:
  StandardException - Oops

next
public boolean next() throws StandardException(Code)
Position to the next log record. true if the log contains a next flushed log record andfalse otherwise. If this returns false it is incorrectto make any of the other calls on this interface.
exception:
  StandardException - Oops

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