What types of event browse initialization are available?

Initialization types include sequential browse (forward, backward, bidirectional, linear), event type browse (type-specific, multi-type, type-group, type-pattern), conditional browse (status-based, priority-based, time-based, filtered), and batch browse (batch, group, category, pattern).

How do I handle errors with CICS STARTBROWSE EVENT?

Always check the response code and implement appropriate error handling, including validation of browse requests, proper handling of initialization errors, and authorization checks.

What is the purpose of event browse initialization?

Event browse initialization enables sequential access to events, manages browse sessions, provides controlled navigation through event lists, and supports efficient event data retrieval.

When should I use CICS STARTBROWSE EVENT?

Use this command when you need to initialize event browsing, start sequential event access, or manage event browse sessions in CICS applications.

CICS STARTBROWSE EVENT - Event Browse Initialization

Q: What is CICS STARTBROWSE EVENT command used for?

CICS STARTBROWSE EVENT is used to initialize event browse operations, manage event browsing, and handle event browse sessions in CICS applications for sequential event access.

CICS STARTBROWSE EVENT provides event browse initialization capabilities in CICS environments. It enables programs to initialize event browse operations, manage event browsing, and handle event browse sessions in CICS applications.

What is CICS STARTBROWSE EVENT?

CICS STARTBROWSE EVENT is a command that allows programs to initialize event browse operations, manage event browsing, and handle event browse sessions in CICS environments. It provides event browse initialization capabilities, browse management, and session handling for CICS applications.

Command Syntax

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EXEC CICS STARTBROWSE EVENT
    [REQID(request-id)]
    [EVENTID(event-id)]
    [RESP(response-code)]
END-EXEC

Parameters

Required Parameters

REQID - Request identifier for the browse operation

Optional Parameters

EVENTID - Event identifier to start browsing from
RESP - Response code variable

Event Browse Initialization Types

Sequential Browse

Initialize sequential event browsing

• FORWARD BROWSE - Initialize forward sequential browsing through events
• BACKWARD BROWSE - Initialize backward sequential browsing through events
• BIDIRECTIONAL BROWSE - Initialize bidirectional browsing through events
• LINEAR BROWSE - Initialize linear browsing through events in order

Event Type Browse

Initialize event type-based browsing

• TYPE-SPECIFIC BROWSE - Initialize browsing through events of specific types
• MULTI-TYPE BROWSE - Initialize browsing across multiple event types
• TYPE-GROUP BROWSE - Initialize browsing through event type groups
• TYPE-PATTERN BROWSE - Initialize browsing through events matching type patterns

Conditional Browse

Initialize conditional event browsing

• STATUS-BASED BROWSE - Initialize browsing based on event status conditions
• PRIORITY-BASED BROWSE - Initialize browsing based on event priority conditions
• TIME-BASED BROWSE - Initialize browsing based on event timing conditions
• FILTERED BROWSE - Initialize browsing with specific filter conditions

Batch Browse

Initialize batch event browsing

• BATCH BROWSE - Initialize browsing through multiple events in batch
• GROUP BROWSE - Initialize browsing through related event groups
• CATEGORY BROWSE - Initialize browsing through event categories
• PATTERN BROWSE - Initialize browsing through events matching patterns

Programming Examples

Basic Event Browse Initialization

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. STARTBROWSE01.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  REQUEST-ID      PIC X(8) VALUE 'REQ001'.
       01  EVENT-ID        PIC X(8) VALUE 'EVT001'.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       
       PROCEDURE DIVISION.
           EXEC CICS STARTBROWSE EVENT
               REQID(REQUEST-ID)
               EVENTID(EVENT-ID)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               DISPLAY 'Event browse initialized successfully'
               DISPLAY 'Request ID: ' REQUEST-ID
               DISPLAY 'Starting Event ID: ' EVENT-ID
           ELSE
               DISPLAY 'Failed to initialize event browse'
           END-IF
           
           EXEC CICS RETURN END-EXEC.

Event Type-Based Browse

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. STARTBROWSE02.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  REQUEST-ID      PIC X(8) VALUE 'REQ002'.
       01  EVENT-ID        PIC X(8) VALUE 'EVT002'.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       01  EVENT-COUNT    PIC 9(3) VALUE 0.
       
       PROCEDURE DIVISION.
           EXEC CICS STARTBROWSE EVENT
               REQID(REQUEST-ID)
               EVENTID(EVENT-ID)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               DISPLAY 'Event type-based browse initialized'
               DISPLAY 'Request ID: ' REQUEST-ID
               DISPLAY 'Starting Event ID: ' EVENT-ID
               
               PERFORM PROCESS-EVENTS
               UNTIL RESPONSE-CODE NOT = DFHRESP(NORMAL)
           ELSE
               DISPLAY 'Failed to initialize event type-based browse'
           END-IF
           
           EXEC CICS RETURN END-EXEC.
       
       PROCESS-EVENTS.
           EXEC CICS GETNEXT EVENT
               REQID(REQUEST-ID)
               EVENTID(EVENT-ID)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               ADD 1 TO EVENT-COUNT
               DISPLAY 'Processing Event ' EVENT-COUNT ': ' EVENT-ID
           END-IF.

Error Handling with Event Browse

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. STARTBROWSE03.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  REQUEST-ID      PIC X(8) VALUE 'REQ003'.
       01  EVENT-ID        PIC X(8) VALUE 'EVT003'.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       
       PROCEDURE DIVISION.
           EXEC CICS STARTBROWSE EVENT
               REQID(REQUEST-ID)
               EVENTID(EVENT-ID)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           EVALUATE RESPONSE-CODE
               WHEN DFHRESP(NORMAL)
                   DISPLAY 'Event browse initialized successfully'
                   DISPLAY 'Request ID: ' REQUEST-ID
                   DISPLAY 'Starting Event ID: ' EVENT-ID
               WHEN DFHRESP(INVREQ)
                   DISPLAY 'Invalid browse request'
               WHEN DFHRESP(EVENTERR)
                   DISPLAY 'Event-specific error occurred'
               WHEN DFHRESP(BROWSEERR)
                   DISPLAY 'Browse-specific error occurred'
               WHEN DFHRESP(AUTHORITYERR)
                   DISPLAY 'Authorization error occurred'
               WHEN OTHER
                   DISPLAY 'Unexpected error occurred'
           END-EVALUATE
           
           EXEC CICS RETURN END-EXEC.

Event Browse Management

Browse Session Management

• Session Initialization - Initialize browse sessions and establish browse context
• Session State Management - Manage browse session state and maintain session continuity
• Session Context Management - Manage browse session context and environment
• Session Lifecycle Management - Manage browse session lifecycle from initialization to termination

Event Management

• Event Data Management - Manage event data during browse operations
• Event State Management - Manage event state during browse operations
• Event Metadata Management - Manage event metadata during browse operations
• Event Access Management - Manage event access during browse operations

Handler Management

• Handler Registration - Register event handlers during browse operations
• Handler Execution - Execute event handlers during browse operations
• Handler Cleanup - Clean up event handlers after browse operations
• Handler Monitoring - Monitor event handler performance during browse operations

Error Management

• Error Detection - Detect errors during browse initialization
• Error Recovery - Recover from browse initialization errors
• Error Reporting - Report browse initialization errors
• Error Prevention - Prevent future browse initialization errors

Error Handling

Common Response Codes

DFHRESP(NORMAL) - Event browse initialized successfully
DFHRESP(INVREQ) - Invalid browse request
DFHRESP(EVENTERR) - Event-specific error
DFHRESP(BROWSEERR) - Browse-specific error
DFHRESP(AUTHORITYERR) - Authorization error
DFHRESP(RESOURCEERR) - Resource error

Performance Considerations

Browse Efficiency

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

Resource Impact

• Monitor resource usage - Track how browse operations consume system resources
• Optimize resource allocation - Ensure efficient allocation of resources for browsing
• Manage resource cleanup - Properly clean up resources after browse operations
• Track resource utilization - Monitor the overall resource consumption patterns

Best Practices

Event Browse Initialization Best Practices

• Always check response codes
• Use appropriate browse parameters
• Implement proper error handling
• Ensure proper browse session management
• Validate browse operations
• Optimize browse operations
• Clean up resources properly

Explain It Like I'm 5 Years Old

Think of CICS STARTBROWSE EVENT like starting to look through a calendar:

• Calendar Name: "Which calendar to look through" - The request ID
• Start Looking: "Start looking through the calendar" - Initialize browse
• Pick Starting Day: "Pick which day to start looking from" - Set starting event
• Ready to Look: "Ready to look through the calendar" - Browse initialized
• Keep Looking: "Keep looking at more days" - Continue browsing

Exercises

Exercise 1: Basic Event Browse

Create a program that initializes event browsing using STARTBROWSE EVENT.

Exercise 2: Event Type-Based Browse

Write a program that initializes event type-based browsing with specific event types.

Exercise 3: Error Handling

Implement comprehensive error handling for event browse initialization failures.

CICS STARTBROWSE EVENT - Event Browse Initialization

What is CICS STARTBROWSE EVENT?

Command Syntax

Parameters

Required Parameters

Optional Parameters

Event Browse Initialization Types

Sequential Browse

Event Type Browse

Conditional Browse

Batch Browse

Programming Examples

Basic Event Browse Initialization

Event Type-Based Browse

Error Handling with Event Browse

Event Browse Management

Browse Session Management

Event Management

Handler Management

Error Management

Error Handling

Common Response Codes

Performance Considerations

Browse Efficiency

Resource Impact

Best Practices

Event Browse Initialization Best Practices

Explain It Like I'm 5 Years Old

Exercises

Exercise 1: Basic Event Browse

Exercise 2: Event Type-Based Browse

Exercise 3: Error Handling

Related Concepts

Event Management

Browse Operations

Event Handlers

Event Processing

Error Handling

Related Pages