Namespace: OpenEdge.Core.Collections
Type: Class MapBackedCollection
Parent Classes:
Progress.Lang.Object
OpenEdge.Core.Collections.MapBackedCollection

Inherits: Progress.Lang.Object
Implements: OpenEdge.Core.Collections.ICollection

Copyright (c) 2013, 2017, 2020, 2022 by Progress Software Corporation. All rights reserved.
File:MapBackedCollection
Purpose:This class acts as a helper for the Key and Value collections that comprise a temp-table-based Map
Author(s):pjudge
Created:Mon Dec 16 16:24:45 EST 2013



Method Summary
  Options Name Purpose
  LOGICAL Add (Object)
  LOGICAL AddAll (ICollection)
  LOGICAL AddArray (Object[])
  Clear ()
  LOGICAL Contains (Object) /* abstract because this could be a key or value */
  LOGICAL ContainsAll (ICollection) /* abstract because this could be a collection of keys or values */
  LOGICAL IsEmpty ()
  OpenEdge.Core.Collections.IIterator Iterator () /* Returns a new IIterator over the collection. */
  LOGICAL Remove (Object) /* abstract because this could be a collection of keys or values */
  LOGICAL RemoveAll (ICollection) /* abstract because this could be a collection of keys or values */
  LOGICAL RetainAll (ICollection) /* abstract because this could be a collection of keys or values */
  Progress.Lang.Object ToArray () /* ToArray should not be used with large collections If there is too much data the ABL will throw: Attempt to update data exceeding 32000. (12371) */
  ToTable (table-handle) /* Returns a TT of the collection's data. This may be expensive, depending on the amount of data in the map. @param output table-handle A TT containing the data. */

Constructor Summary
  Options Name Purpose
  MapBackedCollection (IMap, handle, character)
  MapBackedCollection (IMap, handle, character, character) /* Constructor @param IMap The owning map @param handle The underlying TT holding the data @param character (optional) Query string @param character The field holding the data in the TT */

Property Summary
  Options Name Purpose
  HANDLE KeyField
  HANDLE OwningBuffer
  OpenEdge.Core.Collections.IMap OwningMap
  CHARACTER QueryString
  INTEGER Size


Method Detail
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LOGICAL Add (Object)

Parameters:
newObject Progress.Lang.Object
 
Returns LOGICAL
 
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LOGICAL AddAll (ICollection)

Parameters:
newCollection OpenEdge.Core.Collections.ICollection
 
Returns LOGICAL
 
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LOGICAL AddArray (Object[])

Parameters:
o Progress.Lang.Object
 
Returns LOGICAL
 
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Clear ()
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LOGICAL Contains (Object)

/* abstract because this could be a key or value
Parameters:
checkObject Progress.Lang.Object
 
Returns LOGICAL
 
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LOGICAL ContainsAll (ICollection)

/* abstract because this could be a collection of keys or values
Parameters:
poCollection OpenEdge.Core.Collections.ICollection
 
Returns LOGICAL
 
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LOGICAL IsEmpty ()

Returns LOGICAL
 
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OpenEdge.Core.Collections.IIterator Iterator ()

/* Returns a new IIterator over the collection.
Returns OpenEdge.Core.Collections.IIterator
 
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LOGICAL Remove (Object)

/* abstract because this could be a collection of keys or values
Parameters:
poOld Progress.Lang.Object
 
Returns LOGICAL
 
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LOGICAL RemoveAll (ICollection)

/* abstract because this could be a collection of keys or values
Parameters:
poRemoveCol OpenEdge.Core.Collections.ICollection
 
Returns LOGICAL
 
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LOGICAL RetainAll (ICollection)

/* abstract because this could be a collection of keys or values
Parameters:
poRetainCollection OpenEdge.Core.Collections.ICollection
 
Returns LOGICAL
 
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Progress.Lang.Object ToArray ()

/* ToArray should not be used with large collections
If there is too much data the ABL will throw:
Attempt to update data exceeding 32000. (12371)
Returns Progress.Lang.Object
 
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ToTable (table-handle)

/* Returns a TT of the collection's data.
This may be expensive, depending on the amount of data in the map.
Parameters:
tt TABLE-HANDLE
 


Constructor Detail
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MapBackedCollection (IMap, handle, character)

Parameters:
poMap OpenEdge.Core.Collections.IMap
 
phTT HANDLE
 
pcValuefield CHARACTER
 
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MapBackedCollection (IMap, handle, character, character)

/* Constructor
Parameters:
pMap OpenEdge.Core.Collections.IMap
 
pTT HANDLE
 
pQueryString CHARACTER
 
pValuefield CHARACTER
 


Property Detail
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HANDLE KeyField

Returns HANDLE
 
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HANDLE OwningBuffer

Returns HANDLE
 
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OpenEdge.Core.Collections.IMap OwningMap

Returns OpenEdge.Core.Collections.IMap
 
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CHARACTER QueryString

Returns CHARACTER
 
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INTEGER Size

Returns INTEGER