Java Doc for RecoveryLogControlMBean.java in » Database-JDBC-Connection-Pool » sequoia-2.10.9 » org » continuent » sequoia » common » jmx » mbeans » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database JDBC Connection Pool » sequoia 2.10.9 » org.continuent.sequoia.common.jmx.mbeans

Source Cross Reference Class Diagram Java Document (Java Doc)

org.continuent.sequoia.common.jmx.mbeans .RecoveryLogControlMBean

All known Subclasses:   org.continuent.sequoia.controller.recoverylog .RecoveryLogControl,
RecoveryLogControlMBean
public interface RecoveryLogControlMBean (Code)
MBean Interface to manage the recovery log of a virtual database.
See Also:   org.continuent.sequoia.common.jmx.JmxConstants.getRecoveryLogObjectName(String)

Method Summary
TabularData dump(long from)
     Dumps the content of the recovery log table as a TabularData from a given starting index.
The number of entries retrieved by a call to this method is given by getEntriesPerPage().
Map getCheckpoints()
     Returns a Map<String, String> where the keys are the checkpoint names and the values are the corresponding IDs in the recovery log.
long getEntries()
     Returns the number of entries currently contained in the recovery log.
int getEntriesPerDump()
     Returns the max number of entries which can be returned by the dump(int) method.
String[] getHeaders()

long[] getIndexes()
     Returns an array of 2 long representing the min and max indexes currently contained in the recovery log.
TabularData getRequestsInTransaction(long tid)


Method Detail
dump
TabularData dump(long from)(Code)
Dumps the content of the recovery log table as a TabularData from a given starting index.
The number of entries retrieved by a call to this method is given by getEntriesPerPage(). It can not be more than that (but it can be less).
To retrieve the whole content of the recovery log from its start, the client has to call this method with from = 0 and subsenquentely with the index value of the last feteched entry until the tabular data returned by the method is empty.
The returned type is TabularData for 2 reasons: 1/ it makes it compatible with generic JMX clients 2/ it shields the JMX clients (including ours) from the internal representation of the recovery log table
Parameters:
  from - starting index of the entries to dump (0 todump from the beginning of the recovery log) a TabularData representing the content of the recovery log tablestarting from the from index
See Also:   RecoveryLogControlMBean.getEntriesPerDump()

getCheckpoints
Map getCheckpoints()(Code)
Returns a Map<String, String> where the keys are the checkpoint names and the values are the corresponding IDs in the recovery log. The returned Map is ordered by log ID (newest first). an ordered Map<String, String> where the keysare the checkpoint names and the values are the log IDs

getEntries
long getEntries()(Code)
Returns the number of entries currently contained in the recovery log. an long representing the number of entries currently contained inthe recovery log or -1 if the number of entries isunknown

getEntriesPerDump
int getEntriesPerDump()(Code)
Returns the max number of entries which can be returned by the dump(int) method. the max number of entries which can be returned by thedump(int) method
See Also:   RecoveryLogControlMBean.dump(int)

getHeaders
String[] getHeaders()(Code)
Returns an array of String representing the column names of the recovery log table.
This array can be used as an hint to order the content of the recovery log retrieved as a TabularData. an array of String representing the column names of the recoverylgo table

getIndexes
long[] getIndexes()(Code)
Returns an array of 2 long representing the min and max indexes currently contained in the recovery log.

the first long corresponds to the min index in the recovery log

the second long corresponds to the max index in the recovery log

an array of 2 long representingthe min and max indexes currently contained in the recovery log ornull if the indexes have not been computed

getRequestsInTransaction
TabularData getRequestsInTransaction(long tid)(Code)

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