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// synchronized sclass MoreEfficientCopyOnWriteList<A> extends NotifyingList<A> { bool hasIterator; *() { this(new L); } // Note: uses list as the inner list! *(L<A> list) { super(list); } public synchronized Iterator<A> iterator() { set hasIterator; ret super.iterator(); } public synchronized Spliterator<A> spliterator() { set hasIterator; ret super.spliterator(); } public synchronized ListIterator<A> listIterator() { set hasIterator; ret super.listIterator(); } public synchronized ListIterator<A> listIterator(int index) { set hasIterator; ret super.listIterator(index); } @Override // This is called in synchronized block void beforeChange { if (hasIterator) { setInnerList(cloneList(list)); hasIterator = false; } } void change {} }
Began life as a copy of #1033756
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Snippet ID: | #1034557 |
Snippet name: | MoreEfficientCopyOnWriteList - a better CopyOnWriteArrayList that only makes a copy when there is no iterator |
Eternal ID of this version: | #1034557/11 |
Text MD5: | 05fa41388e2bc75b3ee99446c138a4ac |
Transpilation MD5: | 1b0b301c141a41022c8c1cc3f0f3298c |
Author: | stefan |
Category: | javax / collections |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2022-02-13 18:40:34 |
Source code size: | 888 bytes / 40 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 143 / 252 |
Version history: | 10 change(s) |
Referenced in: | #1003674 - Standard Classes + Interfaces (LIVE continued in #1034167) |