Added Missing method & fixed potential issue with TreeSetBiIterators

This commit is contained in:
Speiger 2021-12-13 13:56:28 +01:00
parent 18f6704ed7
commit 59a417056c
4 changed files with 36 additions and 8 deletions

View File

@ -650,7 +650,7 @@ public class AVL_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_
} }
protected BI_ITERATOR KEY_GENERIC_TYPE keyIterator(KEY_TYPE element) { protected BI_ITERATOR KEY_GENERIC_TYPE keyIterator(KEY_TYPE element) {
return null; return new AscendingKeyIterator(findNode(element));
} }
protected BI_ITERATOR KEY_GENERIC_TYPE descendingKeyIterator() { protected BI_ITERATOR KEY_GENERIC_TYPE descendingKeyIterator() {

View File

@ -650,7 +650,7 @@ public class RB_TREE_MAP KEY_VALUE_GENERIC_TYPE extends ABSTRACT_MAP KEY_VALUE_G
} }
protected BI_ITERATOR KEY_GENERIC_TYPE keyIterator(KEY_TYPE element) { protected BI_ITERATOR KEY_GENERIC_TYPE keyIterator(KEY_TYPE element) {
return null; return new AscendingKeyIterator(findNode(element));
} }
protected BI_ITERATOR KEY_GENERIC_TYPE descendingKeyIterator() { protected BI_ITERATOR KEY_GENERIC_TYPE descendingKeyIterator() {

View File

@ -1280,6 +1280,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
boolean unboundForwardFence; boolean unboundForwardFence;
boolean unboundBackwardFence; boolean unboundBackwardFence;
KEY_TYPE forwardFence; KEY_TYPE forwardFence;
@ -1305,6 +1306,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@ -1319,13 +1321,14 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(lastReturned.needsSuccessor()) next = lastReturned; if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
set.removeNode(lastReturned); set.removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }
@ -1335,6 +1338,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
boolean unboundForwardFence; boolean unboundForwardFence;
boolean unboundBackwardFence; boolean unboundBackwardFence;
KEY_TYPE forwardFence; KEY_TYPE forwardFence;
@ -1360,6 +1364,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@ -1374,12 +1379,14 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
set.removeNode(lastReturned); set.removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }
@ -1390,6 +1397,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
public AscendingSetIterator(Entry KEY_GENERIC_TYPE first) public AscendingSetIterator(Entry KEY_GENERIC_TYPE first)
{ {
@ -1407,6 +1415,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@ -1421,13 +1430,14 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(lastReturned.needsSuccessor()) next = lastReturned; if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
removeNode(lastReturned); removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }
@ -1437,6 +1447,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
public DescendingSetIterator(Entry KEY_GENERIC_TYPE first) public DescendingSetIterator(Entry KEY_GENERIC_TYPE first)
{ {
@ -1454,6 +1465,7 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@ -1468,12 +1480,14 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
removeNode(lastReturned); removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }

View File

@ -1341,6 +1341,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
boolean unboundForwardFence; boolean unboundForwardFence;
boolean unboundBackwardFence; boolean unboundBackwardFence;
KEY_TYPE forwardFence; KEY_TYPE forwardFence;
@ -1366,6 +1367,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@ -1380,13 +1382,14 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(lastReturned.needsSuccessor()) next = lastReturned; if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
set.removeNode(lastReturned); set.removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }
@ -1396,6 +1399,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
boolean unboundForwardFence; boolean unboundForwardFence;
boolean unboundBackwardFence; boolean unboundBackwardFence;
KEY_TYPE forwardFence; KEY_TYPE forwardFence;
@ -1421,6 +1425,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@ -1435,12 +1440,14 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
set.removeNode(lastReturned); set.removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }
@ -1451,6 +1458,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
public AscendingSetIterator(Entry KEY_GENERIC_TYPE first) public AscendingSetIterator(Entry KEY_GENERIC_TYPE first)
{ {
@ -1468,6 +1476,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@ -1482,13 +1491,14 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(lastReturned.needsSuccessor()) next = lastReturned; if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
removeNode(lastReturned); removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }
@ -1498,6 +1508,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
{ {
Entry KEY_GENERIC_TYPE lastReturned; Entry KEY_GENERIC_TYPE lastReturned;
Entry KEY_GENERIC_TYPE next; Entry KEY_GENERIC_TYPE next;
boolean forwards = false;
public DescendingSetIterator(Entry KEY_GENERIC_TYPE first) public DescendingSetIterator(Entry KEY_GENERIC_TYPE first)
{ {
@ -1515,6 +1526,7 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.previous(); next = next.previous();
forwards = false;
return result; return result;
} }
@ -1529,12 +1541,14 @@ public class RB_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
lastReturned = next; lastReturned = next;
KEY_TYPE result = next.key; KEY_TYPE result = next.key;
next = next.next(); next = next.next();
forwards = true;
return result; return result;
} }
@Override @Override
public void remove() { public void remove() {
if(lastReturned == null) throw new IllegalStateException(); if(lastReturned == null) throw new IllegalStateException();
if(forwards && lastReturned.needsSuccessor()) next = lastReturned;
removeNode(lastReturned); removeNode(lastReturned);
lastReturned = null; lastReturned = null;
} }