What types of event browse termination are available?

Termination types include normal termination (graceful, safe, ordered, validated), immediate termination (immediate, emergency, abrupt, override), event type termination (event type, multi-type, event-group, event-pattern), and batch termination (batch, group, category, pattern).

How do I handle errors with CICS ENDBROWSE EVENT?

Always check the response code and implement appropriate error handling, including validation of browse operation existence, proper handling of termination errors, and resource cleanup on termination failures.

What is the purpose of event browse termination?

Event browse termination ends event browse operations, cleans up associated resources, frees memory and other resources, and maintains system efficiency by properly closing browse sessions.

When should I use CICS ENDBROWSE EVENT?

Use this command when you need to terminate event browse operations, clean up resources, free system resources, or properly close browse sessions in CICS applications.

CICS ENDBROWSE EVENT - Event Browse Termination

Q: What is CICS ENDBROWSE EVENT command used for?

CICS ENDBROWSE EVENT is used to terminate event browse operations, clean up browse resources, and end event browsing sessions in CICS applications for event browse management.

CICS ENDBROWSE EVENT provides event browse termination capabilities in CICS environments. It enables programs to terminate event browse operations, clean up browse resources, and end event browsing sessions in CICS applications.

What is CICS ENDBROWSE EVENT?

CICS ENDBROWSE EVENT is a command that allows programs to terminate event browse operations, clean up browse resources, and end event browsing sessions in CICS environments. It provides event browse termination capabilities, resource cleanup, and session management for CICS applications.

Command Syntax

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EXEC CICS ENDBROWSE EVENT
    [REQID(request-id)]
    [RESP(response-code)]
END-EXEC

Parameters

Optional Parameters

REQID - Request identifier for the browse operation
RESP - Response code variable

Event Browse Termination Types

Normal Termination

Standard termination with proper cleanup

• GRACEFUL TERMINATION - Event browse operations terminated after completing current operations
• SAFE TERMINATION - Event browse operations terminated only when safe to do so
• ORDERED TERMINATION - Event browse operations terminated in proper dependency order
• VALIDATED TERMINATION - Event browse operations terminated only after validation checks

Immediate Termination

Immediate termination without waiting

• IMMEDIATE TERMINATION - Event browse operations terminated immediately without waiting
• EMERGENCY TERMINATION - Event browse operations terminated in emergency situations
• ABRUPT TERMINATION - Event browse operations terminated abruptly without cleanup
• OVERRIDE TERMINATION - Event browse operations terminated despite warnings or errors

Event Type Termination

Termination based on event types

• EVENT TYPE TERMINATION - Event browse operations terminated for specific event types
• MULTI-TYPE TERMINATION - Event browse operations terminated across multiple event types
• EVENT-GROUP TERMINATION - Event browse operations terminated for event groups
• EVENT-PATTERN TERMINATION - Event browse operations terminated based on event patterns

Batch Termination

Termination of multiple event browse operations

• BATCH TERMINATION - Multiple event browse operations terminated in a single operation
• GROUP TERMINATION - Related event browse operations terminated as a group
• CATEGORY TERMINATION - Event browse operations terminated by category or type
• PATTERN TERMINATION - Event browse operations terminated based on naming patterns

Programming Examples

Basic Event Browse Termination

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. ENDBROWSE01.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  REQUEST-ID      PIC X(8) VALUE 'REQ001'.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       
       PROCEDURE DIVISION.
           EXEC CICS ENDBROWSE EVENT
               REQID(REQUEST-ID)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               DISPLAY 'Event browse terminated successfully'
           ELSE
               DISPLAY 'Failed to terminate event browse'
           END-IF
           
           EXEC CICS RETURN END-EXEC.

Event Browse Termination Without Request ID

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. ENDBROWSE02.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       
       PROCEDURE DIVISION.
           EXEC CICS ENDBROWSE EVENT
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               DISPLAY 'All event browse operations terminated'
           ELSE
               DISPLAY 'Failed to terminate event browse operations'
           END-IF
           
           EXEC CICS RETURN END-EXEC.

Error Handling with Event Browse Termination

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. ENDBROWSE03.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  REQUEST-ID      PIC X(8) VALUE 'REQ003'.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       
       PROCEDURE DIVISION.
           EXEC CICS ENDBROWSE EVENT
               REQID(REQUEST-ID)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           EVALUATE RESPONSE-CODE
               WHEN DFHRESP(NORMAL)
                   DISPLAY 'Event browse terminated successfully'
                   DISPLAY 'Request ID: ' REQUEST-ID
               WHEN DFHRESP(NOTFND)
                   DISPLAY 'Browse operation not found'
               WHEN DFHRESP(INVREQ)
                   DISPLAY 'Invalid termination request'
               WHEN DFHRESP(EVENTERR)
                   DISPLAY 'Event-specific error occurred'
               WHEN DFHRESP(ENDBROWSEERR)
                   DISPLAY 'End browse-specific error occurred'
               WHEN OTHER
                   DISPLAY 'Unexpected error occurred'
           END-EVALUATE
           
           EXEC CICS RETURN END-EXEC.

Event Browse Cleanup

Resource Cleanup

• Memory Cleanup - Release memory allocated to the event browse operation
• Storage Cleanup - Release storage space used by the event browse operation
• Buffer Cleanup - Clean up buffers used by the event browse operation
• Cache Cleanup - Clear cache entries for the event browse operation

Event Cleanup

• Event References - Remove references to the browse operation in events
• Event Metadata - Update event metadata after browse termination
• Event Index - Update event indexes after browse termination
• Event State - Update event state after browse cleanup

Handler Cleanup

• Handler Removal - Remove event handlers associated with the browse operation
• Callback Cleanup - Clean up callback functions for the browse operation
• Listener Cleanup - Remove event listeners for the browse operation
• Subscriber Cleanup - Remove event subscribers for the browse operation

System Cleanup

• System References - Remove system references to the browse operation
• Registry Cleanup - Remove browse operation from system registry
• Monitoring Cleanup - Remove browse operation from monitoring systems
• Audit Cleanup - Update audit logs after browse termination

Error Handling

Common Response Codes

DFHRESP(NORMAL) - Event browse terminated successfully
DFHRESP(NOTFND) - Browse operation not found
DFHRESP(INVREQ) - Invalid termination request
DFHRESP(EVENTERR) - Event-specific error
DFHRESP(ENDBROWSEERR) - End browse-specific error
DFHRESP(CLEANUPERR) - Cleanup-specific error

Performance Considerations

Termination Efficiency

• Optimize termination operations - Use appropriate termination methods for different event types
• Minimize termination overhead - Reduce the computational cost of termination operations
• Use efficient termination patterns - Implement termination strategies that minimize resource usage
• Monitor termination performance - Track the performance impact of termination operations

Resource Impact

• Monitor resource usage - Track how termination operations consume system resources
• Optimize resource cleanup - Ensure efficient cleanup of resources during termination
• Manage resource recovery - Properly recover resources after termination operations
• Track resource utilization - Monitor the overall resource consumption patterns

Best Practices

Event Browse Termination Best Practices

• Always check response codes
• Use appropriate termination parameters
• Implement proper error handling
• Ensure proper resource cleanup
• Validate browse state before termination
• Optimize termination operations
• Clean up resources properly

Explain It Like I'm 5 Years Old

Think of CICS ENDBROWSE EVENT like finishing looking through a calendar:

• Calendar Name: "Which calendar you were looking through" - The request ID
• Close the Calendar: "Put the calendar away" - End the browse
• Clean Up: "Put everything back where it belongs" - Resource cleanup
• All Done: "Finished looking through the calendar" - Browse terminated

Exercises

Exercise 1: Basic Event Browse Termination

Create a program that terminates a basic event browse operation.

Exercise 2: Multiple Event Browse Termination

Write a program that terminates multiple event browse operations.

Exercise 3: Error Handling

Implement comprehensive error handling for event browse termination failures and cleanup errors.

CICS ENDBROWSE EVENT - Event Browse Termination

What is CICS ENDBROWSE EVENT?

Command Syntax

Parameters

Optional Parameters

Event Browse Termination Types

Normal Termination

Immediate Termination

Event Type Termination

Batch Termination

Programming Examples

Basic Event Browse Termination

Event Browse Termination Without Request ID

Error Handling with Event Browse Termination

Event Browse Cleanup

Resource Cleanup

Event Cleanup

Handler Cleanup

System Cleanup

Error Handling

Common Response Codes

Performance Considerations

Termination Efficiency

Resource Impact

Best Practices

Event Browse Termination Best Practices

Explain It Like I'm 5 Years Old

Exercises

Exercise 1: Basic Event Browse Termination

Exercise 2: Multiple Event Browse Termination

Exercise 3: Error Handling

Related Concepts

Event Management

Browse Operations

Event Handlers

Event Processing

Error Handling

Related Pages