PersistentLog (synchronized) [1001972]

// a persistent list that only grows (or is clear()ed)
// Note: don't put in static initializer (programID not set yet)
static class PersistentLog<A> extends AbstractList<A> {
  new L<A> l;
  File file;
  
  PersistentLog(S fileName) {
    this(getProgramFile(fileName));
  }
  
  PersistentLog(S progID, S fileName) {
    this(getProgramFile(progID, fileName));
  }
  
  *(File *file) {
    for (S s : scanLog(file)) pcall {
      l.add((A) unstructure(s));
    }
  }
  
  public synchronized int size() {
    ret l.size();
  }
  
  public synchronized A get(int i) {
    ret l.get(i);
  }
  
  public synchronized bool add(A a) {
    l.add(a);
    logQuoted(file, structure(a));
    ret true;
  }
  
  S fileContents() {
    ret loadTextFile(file);
  }
  
  public synchronized void clear() {
    l.clear();
    file.delete();
  }
}

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1	// a persistent list that only grows (or is clear()ed)
2	// Note: don't put in static initializer (programID not set yet)
3	static class PersistentLog<A> extends AbstractList<A> {
4	new L<A> l;
5	File file;
6
7	PersistentLog(S fileName) {
8	this(getProgramFile(fileName));
9	}
10
11	PersistentLog(S progID, S fileName) {
12	this(getProgramFile(progID, fileName));
13	}
14
15	(File file) {
16	for (S s : scanLog(file)) pcall {
17	l.add((A) unstructure(s));
18	}
19	}
20
21	public synchronized int size() {
22	ret l.size();
23	}
24
25	public synchronized A get(int i) {
26	ret l.get(i);
27	}
28
29	public synchronized bool add(A a) {
30	l.add(a);
31	logQuoted(file, structure(a));
32	ret true;
33	}
34
35	S fileContents() {
36	ret loadTextFile(file);
37	}
38
39	public synchronized void clear() {
40	l.clear();
41	file.delete();
42	}
43	}

Snippet ID:	#1001972
Snippet name:	PersistentLog (synchronized)
Eternal ID of this version:	#1001972/1
Text MD5:	a5c8704e7f65abed300bd0a1481e8786
Author:	stefan
Category:	javax
Type:	JavaX fragment (include)
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2016-04-28 17:47:01
Source code size:	876 bytes / 43 lines
Pitched / IR pitched:	No / No
Views / Downloads:	741 / 2269
Referenced in:	[show references]

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JavaX fragment (include)