# Node Strategy Inheritance Audit

**Company:** eXonware.com  
**Author:** Eng. Muhammad AlShehri  
**Email:** connect@exonware.com  
**Date:** 08-Oct-2025

## Current Inheritance Analysis

### Already Correct (6 strategies)
1. ArrayListStrategy → ANodeLinearStrategy ✅
2. StackStrategy → ANodeLinearStrategy ✅
3. QueueStrategy → ANodeLinearStrategy ✅
4. PriorityQueueStrategy → ANodeLinearStrategy ✅
5. xTrieStrategy → ANodeTreeStrategy ✅
6. xUnionFindStrategy → ANodeGraphStrategy ✅
7. SparseMatrixStrategy → ANodeMatrixStrategy ✅

### Need Fixing (~21 strategies)

#### Should be ANodeLinearStrategy (3 more)
- LinkedListStrategy - Currently inherits from ANodeStrategy
- DequeStrategy - Currently inherits from ANodeStrategy
- node_linked_list (xLinkedListStrategy)

#### Should be ANodeTreeStrategy (18)
- HashMapStrategy - Currently inherits from ANodeStrategy
- xHeapStrategy - Currently inherits from ANodeStrategy
- xAhoCorasickStrategy
- node_array_list (xArrayListStrategy)
- node_avl_tree (xAVLTreeStrategy)
- node_b_plus_tree (xBPlusTreeStrategy)
- node_btree (xBTreeStrategy)
- node_cow_tree (xCOWTreeStrategy)
- node_fenwick_tree (xFenwickTreeStrategy)
- node_hash_map (xHashMapStrategy)
- node_heap (xHeapStrategy)
- node_lsm_tree (xLSMTreeStrategy)
- node_ordered_map (xOrderedMapStrategy)
- node_ordered_map_balanced (xOrderedMapBalancedStrategy)
- node_patricia (xPatriciaStrategy)
- node_persistent_tree (xPersistentTreeStrategy)
- node_radix_trie (xRadixTrieStrategy)
- node_red_black_tree (xRedBlackTreeStrategy)
- node_segment_tree (xSegmentTreeStrategy)
- node_skip_list (xSkipListStrategy)
- node_splay_tree (xSplayTreeStrategy)
- node_suffix_array (xSuffixArrayStrategy)
- node_treap (xTreapStrategy)

#### Should be ANodeMatrixStrategy (6)
- node_bitmap (xBitmapStrategy)
- node_bitset_dynamic (xBitsetDynamicStrategy)
- node_roaring_bitmap (xRoaringBitmapStrategy)
- node_bloom_filter (xBloomFilterStrategy)
- node_count_min_sketch (xCountMinSketchStrategy)
- node_hyperloglog (xHyperLogLogStrategy)
- node_set_hash (xSetHashStrategy)
- node_set_tree (xSetTreeStrategy)

#### Hybrid/Special
- node_tree_graph_hybrid (TreeGraphHybridStrategy) - Inherits from both
- node_xdata_optimized (DataInterchangeOptimizedStrategy) - Special
- AdjacencyListStrategy - Actually belongs in edges

## Final Classification (28 Node Modes)

### LINEAR (6 modes)
1. ARRAY_LIST → ArrayListStrategy
2. LINKED_LIST → LinkedListStrategy
3. STACK → StackStrategy
4. QUEUE → QueueStrategy
5. DEQUE → DequeStrategy
6. PRIORITY_QUEUE → PriorityQueueStrategy

### TREE (18 modes)
7. HASH_MAP → HashMapStrategy
8. ORDERED_MAP → xOrderedMapStrategy
9. ORDERED_MAP_BALANCED → xOrderedMapBalancedStrategy
10. TRIE → xTrieStrategy
11. RADIX_TRIE → xRadixTrieStrategy
12. PATRICIA → xPatriciaStrategy
13. HEAP → xHeapStrategy
14. B_TREE → xBTreeStrategy
15. B_PLUS_TREE → xBPlusTreeStrategy
16. AVL_TREE → xAVLTreeStrategy
17. RED_BLACK_TREE → xRedBlackTreeStrategy
18. SPLAY_TREE → xSplayTreeStrategy
19. TREAP → xTreapStrategy
20. SKIP_LIST → xSkipListStrategy
21. SEGMENT_TREE → xSegmentTreeStrategy
22. FENWICK_TREE → xFenwickTreeStrategy
23. SUFFIX_ARRAY → xSuffixArrayStrategy
24. AHO_CORASICK → xAhoCorasickStrategy
25. LSM_TREE → xLSMTreeStrategy
26. PERSISTENT_TREE → xPersistentTreeStrategy
27. COW_TREE → xCOWTreeStrategy

### GRAPH (1 mode)
28. UNION_FIND → xUnionFindStrategy

### MATRIX (8 modes)
29. BITMAP → xBitmapStrategy
30. BITSET_DYNAMIC → xBitsetDynamicStrategy
31. ROARING_BITMAP → xRoaringBitmapStrategy
32. BLOOM_FILTER → xBloomFilterStrategy
33. COUNT_MIN_SKETCH → xCountMinSketchStrategy
34. HYPERLOGLOG → xHyperLogLogStrategy
35. SET_HASH → xSetHashStrategy
36. SET_TREE → xSetTreeStrategy (can be either TREE or MATRIX)

### HYBRID (2 modes)
37. TREE_GRAPH_HYBRID → TreeGraphHybridStrategy
38. XDATA_OPTIMIZED → DataInterchangeOptimizedStrategy

Total: 38 implementations for 28 modes (some modes have multiple implementations)
