oracle.ifs.core.handlers

Class CrawlerHandler

java.lang.Object

oracle.ifs.core.handlers.AuditEventHandlerAdapter

oracle.ifs.core.handlers.CrawlerHandler

All Implemented Interfaces:

AuditEventHandler

public class CrawlerHandler
extends AuditEventHandlerAdapter

CrawlerHandler implements the AuditEventHandler interface, and handles the forwarding of specific change-event information to a crawler instance- specific alert table.

Author:

Matt Shannon, Dave Long

Field Summary

Fields

Modifier and Type	Field and Description
static String	PROPERTY_NAME_ALERT_TABLE_SUFFIX Audit spec property used to capture the alert table suffix.
static String	PROPERTY_NAME_AUDIT_EVENT_BATCH_SIZE Audit spec property used to capture audit event (selection) batch size.
static String	PROPERTY_NAME_GRANTEE Audit spec property used to capture schema (grantee) that should be granted access to crawler views and alert table.
static String	PROPERTY_NAME_JDBC_BATCH_SIZE Audit spec property used to capture JDBC batch size (alert table inserts)
static String	PROPERTY_NAME_PERFORM_CONFIGURATION Audit spec property used to track whether this particular crawler handler instance requires configuration.

Fields inherited from class oracle.ifs.core.handlers.AuditEventHandlerAdapter

DEFAULT_BATCHSIZE

Constructor Summary

Constructors

Constructor and Description
CrawlerHandler()

Method Summary

Modifier and Type	Method and Description
void	handleEventPosted(AuditEventHandlerContext context) Called when at least one registered event is posted.
void	handleInitialize(AuditEventHandlerContext context) Initializes this handler.
void	handleTimerExpired(AuditEventHandlerContext context) Called when the timer for this AuditEventHandler expires.

Methods inherited from class oracle.ifs.core.handlers.AuditEventHandlerAdapter

deleteEvents, getAuditHandlerSpecification, getAuditSpecification, getHandlerProperty, handleDispose, markProcessingCompleted, markProcessingStarted, processEvent, processEvents, processEvents, processEvents, selectEvents, selectEvents, selectMaximumEventId, setHandlerProperty, setProcessingStarted

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_NAME_PERFORM_CONFIGURATION

public static final String PROPERTY_NAME_PERFORM_CONFIGURATION

Audit spec property used to track whether this particular crawler handler instance requires configuration. A value of false indicates that this instance's associated grantee schema has been granted accress to the crawler views, and that the crawler instance specific alert table has been created. A value of true indicates that the ECM instance needs to be configured to support this particular crawler handler instance.

See Also:

Constant Field Values

PROPERTY_NAME_GRANTEE

public static final String PROPERTY_NAME_GRANTEE

Audit spec property used to capture schema (grantee) that should be granted access to crawler views and alert table.

See Also:

Constant Field Values

PROPERTY_NAME_AUDIT_EVENT_BATCH_SIZE

public static final String PROPERTY_NAME_AUDIT_EVENT_BATCH_SIZE

Audit spec property used to capture audit event (selection) batch size.

See Also:

Constant Field Values

PROPERTY_NAME_JDBC_BATCH_SIZE

public static final String PROPERTY_NAME_JDBC_BATCH_SIZE

Audit spec property used to capture JDBC batch size (alert table inserts)

See Also:

Constant Field Values

PROPERTY_NAME_ALERT_TABLE_SUFFIX

public static final String PROPERTY_NAME_ALERT_TABLE_SUFFIX

Audit spec property used to capture the alert table suffix. The value of this property when combined with ALERT_TABLE_PREFIX must constitute a unique table name with the ECM schema to host this particular crawler instance's alert details. Restrictions: max length of database object name is 30 characters. Table prefix must be taken in to account when determining length. Database naming restrictions also apply.

See Also:

Constant Field Values

Constructor Detail

CrawlerHandler

public CrawlerHandler()

Method Detail

handleInitialize

public void handleInitialize(AuditEventHandlerContext context)
                      throws Exception

Description copied from class: AuditEventHandlerAdapter

Initializes this handler.

Called immediately after construction.

Specified by:

handleInitialize in interface AuditEventHandler

Overrides:

handleInitialize in class AuditEventHandlerAdapter

Parameters:

context - the AuditEventHandlerContext to use for processing

Throws:

Exception - if the operation fails

handleEventPosted

public void handleEventPosted(AuditEventHandlerContext context)
                       throws Exception

Description copied from class: AuditEventHandlerAdapter

Called when at least one registered event is posted.

Specified by:

handleEventPosted in interface AuditEventHandler

Overrides:

handleEventPosted in class AuditEventHandlerAdapter

Parameters:

context - the AuditEventHandlerContext to use for processing

Throws:

Exception - if the operation fails

handleTimerExpired

public void handleTimerExpired(AuditEventHandlerContext context)
                        throws Exception

Description copied from class: AuditEventHandlerAdapter

Called when the timer for this AuditEventHandler expires.

Specified by:

handleTimerExpired in interface AuditEventHandler

Overrides:

handleTimerExpired in class AuditEventHandlerAdapter

Parameters:

context - the AuditEventHandlerContext to use for processing

Throws:

Exception - if the operation fails