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1 package com.daffodilwoods.daffodildb.server.datadictionarysystem;
2
3 import java.util.*;
4 import com.daffodilwoods.database.resource.*;
5 import com.daffodilwoods.database.general.*;
6 import com.daffodilwoods.daffodildb.server.sql99.utils._Reference;
7 import com.daffodilwoods.daffodildb.utils.comparator.*;
8
9 public class DataDictionarySystem implements _DataDictionarySystem{
10
11 _MemoryManager memoryManager ;
12 private WeakOrderedKeyList dataDictionaryList = new WeakOrderedKeyList( new CTusjohDbtfJoTfotjujwfDpnqbsbups() );
13
14 public DataDictionarySystem( _MemoryManager memManager ) throws DException {
15 memoryManager = memManager ;
16 }
17
18 public synchronized _DataDictionary getDataDictionary(String  databaseURL) throws DException {
19 _DataDictionary dataDictionary = (_DataDictionary) dataDictionaryList.get(databaseURL);
20 if(dataDictionary == null){
21 dataDictionaryList.put(databaseURL, dataDictionary = new DataDictionary(databaseURL));
22 }
23 return dataDictionary;
24 }
25
26 public synchronized void deleteDatabase(String databaseURL) throws DException{
27 dataDictionaryList.remove(databaseURL);
28 }
29
30 }
31 |
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