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# ACE_Hash_Map_Bucket_Iterator Class Template Reference

Forward iterator for the <ACE_Hash_Map_Manager_Ex> which only traverses a particular bucket. The particular bucket is specified by the <EXT_ID> parameter specified in the constructor. More...

`#include <Hash_Map_Manager_T.h>`

Collaboration diagram for ACE_Hash_Map_Bucket_Iterator:

[legend]
List of all members.

## Public Methods
| ACE_Hash_Map_Bucket_Iterator (ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > &mm, const EXT_ID &ext_id, int tail=0)
ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & | operator++ (void)
| Prefix advance. More...
ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > | operator++ (int)
| Postfix advance. More...
ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & | operator-- (void)
| Prefix reverse. More...
ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > | operator-- (int)
| Postfix reverse. More...
ACE_Hash_Map_Entry< EXT_ID, INT_ID > & | operator * (void) const
| Returns a reference to the interal element <this> is pointing to. More...
ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & | map (void)
| Returns reference the Hash_Map_Manager_Ex that is being iterated over. More...
int | operator== (const ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > &) const
| Check if two iterators point to the same position. More...
int | operator!= (const ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > &) const
## Protected Methods
int | forward_i (void)
| Move forward by one element in the set. Returns 0 when there's no more item in the set after the current items, else 1. More...
int | reverse_i (void)
| Move backward by one element in the set. Returns 0 when there's no more item in the set before the current item, else 1. More...
## Protected Attributes
ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > * | map_man_
| Map we are iterating over. More...
ssize_t | index_
| Keeps track of how far we've advanced in the table. More...
ACE_Hash_Map_Entry< EXT_ID, INT_ID > * | next_
| Keeps track of how far we've advanced in a linked list in each table slot. More...

## Detailed Description

### template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
class ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >

Forward iterator for the <ACE_Hash_Map_Manager_Ex> which only traverses a particular bucket. The particular bucket is specified by the <EXT_ID> parameter specified in the constructor.

This class does not perform any internal locking of the <ACE_Hash_Map_Manager_Ex> it is iterating upon since locking is inherently inefficient and/or error-prone within an STL-style iterator. If you require locking, you can explicitly use an <ACE_Guard> or <ACE_Read_Guard> on the <ACE_Hash_Map_Manager_Ex>'s internal lock, which is accessible via its <mutex> method. Note that this iterator cannot be created by calling a method on the map, since this would require

## Constructor & Destructor Documentation

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::ACE_Hash_Map_Bucket_Iterator | ( | ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & | mm,
|  | const EXT_ID & | ext_id,
|  | int | tail = 0
| ) |

## Member Function Documentation

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
int ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::forward_i | ( | void |  | ) | `[protected]`

| Move forward by one element in the set. Returns 0 when there's no more item in the set after the current items, else 1.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Manager_Ex< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::map | ( | void |  | ) |

| Returns reference the Hash_Map_Manager_Ex that is being iterated over.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Entry< EXT_ID, INT_ID > & ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator * | ( | void |  | ) | const

| Returns a reference to the interal element <this> is pointing to.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE int ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator!= | ( | const ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & | rhs | ) | const

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator++ | ( | int |  | ) |

| Postfix advance.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator++ | ( | void |  | ) |

| Prefix advance.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator-- | ( | int |  | ) |

| Postfix reverse.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator-- | ( | void |  | ) |

| Prefix reverse.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_INLINE int ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::operator== | ( | const ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK > & | rhs | ) | const

| Check if two iterators point to the same position.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
int ACE_Hash_Map_Bucket_Iterator< EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK >::reverse_i | ( | void |  | ) | `[protected]`

| Move backward by one element in the set. Returns 0 when there's no more item in the set before the current item, else 1.

## Member Data Documentation

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ssize_t ACE_Hash_Map_Bucket_Iterator::index_`[protected]`

| Keeps track of how far we've advanced in the table.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_Hash_Map_Manager_Ex<EXT_ID, INT_ID, HASH_KEY, COMPARE_KEYS, ACE_LOCK>* ACE_Hash_Map_Bucket_Iterator::map_man_`[protected]`

| Map we are iterating over.

template<class EXT_ID, class INT_ID, class HASH_KEY, class COMPARE_KEYS, class ACE_LOCK>
ACE_Hash_Map_Entry<EXT_ID, INT_ID>* ACE_Hash_Map_Bucket_Iterator::next_`[protected]`

| Keeps track of how far we've advanced in a linked list in each table slot.

The documentation for this class was generated from the following files:

- Hash_Map_Manager_T.h
- Hash_Map_Manager_T.i