bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/DirectStatementsImpl.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package fi.vtt.simantics.procore.internal;\r
  13 \r
  14 import gnu.trove.list.array.TIntArrayList;\r
  15 \r
  16 import java.util.Collection;\r
  17 import java.util.Iterator;\r
  18 \r
  19 import org.simantics.db.DirectStatements;\r
  20 import org.simantics.db.Resource;\r
  21 import org.simantics.db.Statement;\r
  22 import org.simantics.db.impl.ResourceImpl;\r
  23 import org.simantics.db.impl.support.ResourceSupport;\r
  24 \r
  25 final public class DirectStatementsImpl implements DirectStatements {\r
  26 \r
  27         final ResourceSupport support;\r
  28         final int subject;\r
  29         final TIntArrayList statements = new TIntArrayList();\r
  30         \r
  31         DirectStatementsImpl(ResourceSupport support, int subject) {\r
  32                 this.support = support;\r
  33                 this.subject = subject;\r
  34         }\r
  35         \r
  36         void addStatement(int p, int o) {\r
  37                 statements.add(p);\r
  38                 statements.add(o);\r
  39         }\r
  40         \r
  41         @Override\r
  42         public Resource getSubject() {\r
  43                 return new ResourceImpl(support, subject);\r
  44         }\r
  45 \r
  46         @Override\r
  47         public boolean add(Statement arg0) {\r
  48                 throw new Error("Not supported");\r
  49         }\r
  50 \r
  51         @Override\r
  52         public boolean addAll(Collection<? extends Statement> arg0) {\r
  53                 throw new Error("Not supported");\r
  54         }\r
  55 \r
  56         @Override\r
  57         public void clear() {\r
  58                 throw new Error("Not supported");\r
  59         }\r
  60 \r
  61         @Override\r
  62         public boolean contains(Object arg0) {\r
  63         Statement stm = (Statement)arg0;\r
  64         ResourceImpl p = (ResourceImpl)stm.getPredicate();\r
  65         ResourceImpl o = (ResourceImpl)stm.getObject();\r
  66         for(int i=0;i<statements.size();i+=2) {\r
  67             int pi = statements.getQuick(i);\r
  68             int oi = statements.getQuick(i+1);\r
  69             if(p.id == pi && o.id == oi) return true;\r
  70         }\r
  71         return false;\r
  72         }\r
  73 \r
  74         @Override\r
  75         public boolean containsAll(Collection<?> arg0) {\r
  76                 throw new Error("Not supported");\r
  77         }\r
  78 \r
  79         @Override\r
  80         public boolean isEmpty() {\r
  81                 throw new Error("Not supported");\r
  82         }\r
  83 \r
  84         @Override\r
  85         public Iterator<Statement> iterator() {\r
  86                 return new Iterator<Statement>() {\r
  87 \r
  88                         int index = 0;\r
  89                         int max = statements.size();\r
  90                         \r
  91                         @Override\r
  92                         public boolean hasNext() {\r
  93                                 return index < max; \r
  94                         }\r
  95 \r
  96                         @Override\r
  97                         public Statement next() {\r
  98                                 return new DirectStatementImpl(support, subject, statements.getQuick(index++), statements.getQuick(index++));\r
  99                         }\r
 100 \r
 101                         @Override\r
 102                         public void remove() {\r
 103                                 throw new Error("Not supported");\r
 104                         }\r
 105                         \r
 106                 };\r
 107         }\r
 108 \r
 109         @Override\r
 110         public boolean remove(Object arg0) {\r
 111                 throw new Error("Not supported");\r
 112         }\r
 113 \r
 114         @Override\r
 115         public boolean removeAll(Collection<?> arg0) {\r
 116                 throw new Error("Not supported");\r
 117         }\r
 118 \r
 119         @Override\r
 120         public boolean retainAll(Collection<?> arg0) {\r
 121                 throw new Error("Not supported");\r
 122         }\r
 123 \r
 124         @Override\r
 125         public int size() {\r
 126                 return statements.size() >> 1;\r
 127         }\r
 128 \r
 129         @Override\r
 130         public Object[] toArray() {\r
 131                 throw new Error("Not supported");\r
 132         }\r
 133 \r
 134         @Override\r
 135         public <T> T[] toArray(T[] arg0) {\r
 136                 throw new Error("Not supported");\r
 137         }\r
 138         \r
 139 }\r