com.neeve.service.cdc

Class DbPersister

java.lang.Object

com.neeve.service.cdc.DbPersister

Direct Known Subclasses:

DbPersister, DbPersister, DbPersister

public abstract class DbPersister
extends Object

The Eagle database persister parent class.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	DbPersister.RetentionPolicy

Field Summary

Fields

Modifier and Type	Field and Description
protected IdentityInformationProvider	_identityInfoProvider
protected String	_influxDbName
protected Boolean	_influxEnabled
protected long	_influxMpstatsInjectFreq
protected String	_influxPassword
protected String	_influxUrl
protected String	_influxUsername
protected Connection	_rdbmsConnection
protected boolean	_rdbmsCreateIndexes
protected boolean	_rdbmsCreateTables
protected String	_rdbmsDriver
protected Boolean	_rdbmsEnabled
protected int	_rdbmsNumReaderThreads
protected String	_rdbmsPassword
protected long	_rdbmsReconnectAttemptDuration
protected long	_rdbmsReconnectFrequency
protected String	_rdbmsUrl
protected String	_rdbmsUsername
protected Set<String>	_tableNames
static Date	MAX_DATE
static Date	MIN_DATE
static String	TECHSTATS_RP
static String	TECHSTATS_RP_DURATION

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DbPersister(IDbTracer dbTracer, String module)

Method Summary

Modifier and Type	Method and Description
void	close() Close a database persister.
void	commit() Commit the current RDBMS transaction
void	delete(com.eaio.uuid.UUID id) Delete an object in the RBDMS
protected abstract void	doClose() Method invoked to close the concrete persister This method is called just before the database connection is closed.
protected abstract void	doDelete(com.eaio.uuid.UUID id) Delete an object from the database
protected DbPersister.RetentionPolicy[]	doGetAdditionalRetentionPolicies() Method invoked to fetch additional reention policies This method is called after the database connection is opened.
protected abstract void	doOpen() Method invoked to open the concrete persister This method is called after the database connection is opened.
protected abstract void	doUpdate(Object object) Add or update an object in the database
String	getAgentName() Get the agent name
String	getAppName() Get the name of the app associated with a DB persister.
int	getAppPartition() Get the partition number of the app associated with a DB persister.
long	getInlfuxMpstatsInjectFrequency() Get the influx db mpstats inject frequency
Connection	getRDBMSConnection() Get the persister RDBMS connection
String	getServerName() Get the server name
Set<String>	getTableNames() Get the names of all the tables in the RDBMS
boolean	indexExists(String tableName, String indexName) Check if an index exists in the RDBMS
static boolean	isValidDate(Date date) Validate persistence constraints for a date
void	open() Open a DB persister
abstract void	read(com.eaio.uuid.UUID parentId, IDbReaderCallback cb) Read all objects from the database
boolean	sequenceExists(String sequenceName) Check if a sequence exists in the RDBMS
boolean	tableExists(String tableName) Check if a table exists in the RDBMS
protected String	tracePrefix() Get the trace prefix for this DB persister
protected Tracer	tracer() Get the tracer for this DB persister
void	update(Object object) Update an object in the RDBMS

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_rdbmsEnabled

@Inject
protected Boolean _rdbmsEnabled

_rdbmsDriver

@Inject
protected String _rdbmsDriver

_rdbmsUrl

@Inject
protected String _rdbmsUrl

_rdbmsUsername

@Inject
protected String _rdbmsUsername

_rdbmsPassword

@Inject
protected String _rdbmsPassword

_rdbmsCreateTables

@Inject
protected boolean _rdbmsCreateTables

_rdbmsCreateIndexes

@Inject
protected boolean _rdbmsCreateIndexes

_rdbmsNumReaderThreads

@Inject
protected int _rdbmsNumReaderThreads

_rdbmsReconnectFrequency

@Inject
protected long _rdbmsReconnectFrequency

_rdbmsReconnectAttemptDuration

@Inject
protected long _rdbmsReconnectAttemptDuration

_influxEnabled

@Inject
protected Boolean _influxEnabled

_influxUrl

@Inject
protected String _influxUrl

_influxUsername

@Inject
protected String _influxUsername

_influxPassword

@Inject
protected String _influxPassword

_influxDbName

@Inject
protected String _influxDbName

_identityInfoProvider

@Inject
protected IdentityInformationProvider _identityInfoProvider

_influxMpstatsInjectFreq

@Inject
protected long _influxMpstatsInjectFreq

_tableNames

protected Set<String> _tableNames

_rdbmsConnection

protected Connection _rdbmsConnection

TECHSTATS_RP

public static final String TECHSTATS_RP

See Also:

Constant Field Values

TECHSTATS_RP_DURATION

public static final String TECHSTATS_RP_DURATION

See Also:

Constant Field Values

MIN_DATE

public static final Date MIN_DATE

MAX_DATE

public static final Date MAX_DATE

Constructor Detail

DbPersister

protected DbPersister(IDbTracer dbTracer,
                      String module)

Method Detail

doGetAdditionalRetentionPolicies

protected DbPersister.RetentionPolicy[] doGetAdditionalRetentionPolicies()

Method invoked to fetch additional reention policies

This method is called after the database connection is opened.

doOpen

protected abstract void doOpen()
                        throws Exception

Method invoked to open the concrete persister

This method is called after the database connection is opened.

Throws:

Exception

doClose

protected abstract void doClose()

Method invoked to close the concrete persister

This method is called just before the database connection is closed.

doUpdate

protected abstract void doUpdate(Object object)
                          throws Exception

Add or update an object in the database

Throws:

Exception

doDelete

protected abstract void doDelete(com.eaio.uuid.UUID id)
                          throws Exception

Delete an object from the database

Throws:

Exception

tracePrefix

protected final String tracePrefix()

Get the trace prefix for this DB persister

tracer

protected final Tracer tracer()

Get the tracer for this DB persister

read

public abstract void read(com.eaio.uuid.UUID parentId,
                          IDbReaderCallback cb)
                   throws Exception

Read all objects from the database

Parameters:

parentId - The id of the parent of the root object in the database

Throws:

Exception

isValidDate

public static final boolean isValidDate(Date date)

Validate persistence constraints for a date

getAppName

public final String getAppName()

Get the name of the app associated with a DB persister.

getAppPartition

public final int getAppPartition()

Get the partition number of the app associated with a DB persister.

getAgentName

public final String getAgentName()

Get the agent name

getServerName

public final String getServerName()

Get the server name

getInlfuxMpstatsInjectFrequency

public final long getInlfuxMpstatsInjectFrequency()

Get the influx db mpstats inject frequency

open

public final void open()
                throws Exception

Open a DB persister

Throws:

Exception

getRDBMSConnection

public final Connection getRDBMSConnection()

Get the persister RDBMS connection

tableExists

public final boolean tableExists(String tableName)
                          throws Exception

Check if a table exists in the RDBMS

Throws:

Exception

indexExists

public final boolean indexExists(String tableName,
                                 String indexName)
                          throws Exception

Check if an index exists in the RDBMS

Throws:

Exception

sequenceExists

public final boolean sequenceExists(String sequenceName)
                             throws Exception

Check if a sequence exists in the RDBMS

Throws:

Exception

getTableNames

public final Set<String> getTableNames()

Get the names of all the tables in the RDBMS

update

public final void update(Object object)
                  throws Exception

Update an object in the RDBMS

Throws:

Exception

delete

public final void delete(com.eaio.uuid.UUID id)
                  throws Exception

Delete an object in the RBDMS

Throws:

Exception

commit

public final void commit()
                  throws Exception

Commit the current RDBMS transaction

Throws:

Exception

close

public final void close()

Close a database persister.