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OpenEdge ABL API Reference

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OpenEdge.Messaging.IHeaders

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  • Last Updated: January 15, 2026
  • 2 minute read
    • OpenEdge
    • Documentation
Namespace: OpenEdge.Messaging
Type: Interface IHeaders
Parent Classes:
Inherits: Progress.Lang.Object

/*
Copyright © 2021 Progress Software Corporation and/or its subsidiaries or affiliates. All Rights Reserved.
Purpose:
Contains a collection of RecordHeader objects.



Method Summary
  Options Name Purpose
  OpenEdge.Messaging.IHeaders Add (RecordHeader) /** Adds the given RecordHeader to the collection. @throw MessagingError if the collection is read-only, or the RecordHeader is not valid. @return returns this-object if successful. */
  IIterator &ltRecordHeader> GetIterator () /** Returns an iterator over the collection of record headers. */
  OpenEdge.Messaging.RecordHeader GetLastHeader (character) /** Retrieve the last header within the collection identified by the given key, if present. */
  OpenEdge.Messaging.IHeaders Remove (character) /** Removes the header for the given key from the collection. @throw MessagingError if the collection is read-only. @return this-object if successful. */
  OpenEdge.Messaging.RecordHeader ToArray () /** Returns the collection of record headers as an extent. */

Property Summary
  Options Name Purpose
  INTEGER Count
  LOGICAL IsReadOnly


Method Detail
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OpenEdge.Messaging.IHeaders Add (RecordHeader)

Purpose:
Adds the given RecordHeader to the collection.
@throw MessagingError if the collection is read-only, or the RecordHeader is not valid.
Parameters:
recordHeader OpenEdge.Messaging.RecordHeader
 
Returns OpenEdge.Messaging.IHeaders
  returns this-object if successful.
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IIterator &ltRecordHeader> GetIterator ()

Purpose:
Returns an iterator over the collection of record headers.
Returns IIterator &ltRecordHeader>
 
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OpenEdge.Messaging.RecordHeader GetLastHeader (character)

Purpose:
Retrieve the last header within the collection identified by the given key, if present.
Parameters:
key CHARACTER
 
Returns OpenEdge.Messaging.RecordHeader
 
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OpenEdge.Messaging.IHeaders Remove (character)

Purpose:
Removes the header for the given key from the collection.
@throw MessagingError if the collection is read-only.
Parameters:
key CHARACTER
 
Returns OpenEdge.Messaging.IHeaders
  this-object if successful.
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OpenEdge.Messaging.RecordHeader ToArray ()

Purpose:
Returns the collection of record headers as an extent.
Returns OpenEdge.Messaging.RecordHeader
 


Property Detail
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INTEGER Count

Returns INTEGER
 
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LOGICAL IsReadOnly

Returns LOGICAL
 


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