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BDE 4.39.x Production Release
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#include <bdlcc_objectcatalog.h>
Provide thread safe iteration through all the objects of an object catalog of parameterized TYPE. The order of the iteration is implementation defined. An iterator is valid if it is associated with an object in the catalog, otherwise it is invalid. Thread-safe iteration is provided by (read)locking the object catalog during the iterator's construction and unlocking it at the iterator's destruction. This guarantees that during the life time of an iterator, the object catalog can't be modified (nevertheless, multiple threads can concurrently read the object catalog).
Public Member Functions | |
| ObjectCatalogIter (const ObjectCatalog< TYPE > &catalog) | |
| ObjectCatalogIter (const ObjectCatalog< TYPE > &catalog, int handle) | |
| ~ObjectCatalogIter () | |
| void | operator++ () |
| operator const void * () const | |
| bsl::pair< int, TYPE > | operator() () const |
| int | handle () const |
| const TYPE & | value () const |
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inlineexplicit |
Create an iterator for the specified catalog and associate it with the first member of the catalog. If the catalog is empty then the iterator is initialized to be invalid. The catalog is locked for read for the duration of iterator's life.
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inline |
Create an iterator for the specified catalog and associate it with the member of the catalog associated with the specified handle. If the catalog is empty or if handle is invalid, then the iterator is initialized to be invalid. The catalog is locked for read for the duration of iterator's life.
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inline |
Destroy this iterator and unlock the catalog associated with it.
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inline |
Return the handle referred to by the iterator.
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inline |
Return a pair containing the handle (as the first element of the pair) and the object (as the second element of the pair) associated with this iterator.
| void bdlcc::ObjectCatalogIter< TYPE >::operator++ | ( | ) |
Advance this iterator to refer to the next object of the associated catalog; if there is no next object in the associated catalog, then this iterator becomes invalid.
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inline |
Return a const reference to the value referred to by the iterator.