bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/ConstantPropertyVariable.java

   1 package org.simantics.db.layer0.variable;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.Collections;\r
   5 import java.util.HashMap;\r
   6 import java.util.Map;\r
   7 import java.util.Set;\r
   8 \r
   9 import org.simantics.databoard.binding.Binding;\r
  10 import org.simantics.databoard.type.Datatype;\r
  11 import org.simantics.db.ReadGraph;\r
  12 import org.simantics.db.Resource;\r
  13 import org.simantics.db.WriteGraph;\r
  14 import org.simantics.db.exception.DatabaseException;\r
  15 import org.simantics.utils.ObjectUtils;\r
  16 \r
  17 public class ConstantPropertyVariable extends AbstractPropertyVariable {\r
  18 \r
  19     final protected Variable parent;\r
  20     final String name;\r
  21     final Object value;\r
  22     final Binding binding;\r
  23     final Map<String, Variable> properties;\r
  24 \r
  25     public ConstantPropertyVariable(Variable parent, String name, Object value, Binding binding, Collection<ConstantPropertyVariableBuilder> propertyBuilders, Set<String> classifications) {\r
  26         assert parent != null;\r
  27         assert name != null;\r
  28         this.parent = parent;\r
  29         this.name = name;\r
  30         this.value = value;\r
  31         this.binding = binding;\r
  32         this.properties = new HashMap<String, Variable>(propertyBuilders.size());\r
  33         for(ConstantPropertyVariableBuilder builder : propertyBuilders) {\r
  34                 properties.put(builder.getName(), builder.build(this));\r
  35         }\r
  36         if(!classifications.isEmpty())\r
  37                 properties.put(Variables.CLASSIFICATIONS, new ConstantPropertyVariable(this, Variables.CLASSIFICATIONS, classifications, null));\r
  38     }\r
  39 \r
  40     public ConstantPropertyVariable(Variable parent, String name, Object value, Binding binding) {\r
  41         this(parent, name, value, binding, Collections.<ConstantPropertyVariableBuilder>emptyList(), Collections.<String>emptySet());\r
  42     }\r
  43 \r
  44     @Override\r
  45     public <T> T getValue(ReadGraph graph) throws DatabaseException {\r
  46         return (T)value;\r
  47     }\r
  48 \r
  49     @Override\r
  50     public <T> T getValue(ReadGraph graph, Binding binding)\r
  51             throws DatabaseException {        \r
  52         return (T)value;\r
  53     }\r
  54 \r
  55     @Override\r
  56     public void setValue(WriteGraph graph, Object value, Binding binding)\r
  57             throws DatabaseException {\r
  58         throw new DatabaseException("Value is constant.");\r
  59     }\r
  60 \r
  61     @Override\r
  62     public String getName(ReadGraph graph) throws DatabaseException {\r
  63         return name;\r
  64     }\r
  65 \r
  66     @Override\r
  67     public Resource getType(ReadGraph graph) throws DatabaseException {\r
  68         return null;\r
  69     }\r
  70 \r
  71     @Override\r
  72     public Resource getPossibleType(ReadGraph graph) throws DatabaseException {\r
  73         return null;\r
  74     }\r
  75 \r
  76     @Override\r
  77     public Resource getType(ReadGraph graph, Resource baseType) throws DatabaseException {\r
  78         return null;\r
  79     }\r
  80 \r
  81     @Override\r
  82     public Resource getPossibleType(ReadGraph graph, Resource baseType) throws DatabaseException {\r
  83         return null;\r
  84     }\r
  85 \r
  86 //    @Override\r
  87 //    public Object getSerialized(ReadGraph graph) throws DatabaseException {\r
  88 //        return name;\r
  89 //    }\r
  90 \r
  91     @Override\r
  92     public Variable getParent(ReadGraph graph) throws DatabaseException {\r
  93         return parent;\r
  94     }\r
  95 \r
  96     @Override\r
  97     public Resource getRepresents(ReadGraph graph) throws DatabaseException {\r
  98         return null;\r
  99     }\r
 100     \r
 101     @Override\r
 102     public Datatype getDatatype(ReadGraph graph) throws DatabaseException {\r
 103         return binding != null ? binding.type() : null;\r
 104     }\r
 105     \r
 106     @Override\r
 107     public Resource getPropertyResource(ReadGraph graph) throws DatabaseException {\r
 108         return null;\r
 109     }\r
 110 \r
 111     @Override\r
 112     public Resource getContainerResource(ReadGraph graph) throws DatabaseException {\r
 113         return null;\r
 114     }\r
 115     \r
 116     @Override\r
 117     public Variable getPredicate(ReadGraph graph) throws DatabaseException {\r
 118         return null;\r
 119     }\r
 120     \r
 121     @Override\r
 122     protected Variable getPossibleDomainProperty(ReadGraph graph, String name)\r
 123                 throws DatabaseException {\r
 124         return properties.get(name);\r
 125     }\r
 126 \r
 127     @Override\r
 128     public Map<String, Variable> collectDomainProperties(ReadGraph graph,\r
 129                 Map<String, Variable> properties) throws DatabaseException {\r
 130         if(!this.properties.isEmpty()) {\r
 131                 if(properties == null) properties = new HashMap<String,Variable>(this.properties.size());\r
 132                 properties.putAll(this.properties);\r
 133         }\r
 134         return properties;\r
 135     }\r
 136     \r
 137     @Override\r
 138     public Set<String> getClassifications(ReadGraph graph) throws DatabaseException {\r
 139         Variable property = getPossibleDomainProperty(graph, Variables.CLASSIFICATIONS);\r
 140         if(property != null) return property.getValue(graph);\r
 141         else return Collections.emptySet();\r
 142     }\r
 143     \r
 144     @Override\r
 145     public int hashCode() {\r
 146         final int prime = 31;\r
 147         int result = 1;\r
 148         result = prime * result + name.hashCode();\r
 149         result = prime * result + parent.hashCode();\r
 150         result = prime * result + ((value == null) ? 0 : value.hashCode());\r
 151         result = prime * result + ((binding == null) ? 0 : binding.hashCode());\r
 152         return result;\r
 153     }\r
 154 \r
 155     @Override\r
 156     public boolean equals(Object obj) {\r
 157         if (this == obj)\r
 158             return true;\r
 159         if (obj == null)\r
 160             return false;\r
 161         if (getClass() != obj.getClass())\r
 162             return false;\r
 163         ConstantPropertyVariable other = (ConstantPropertyVariable) obj;\r
 164         if (!name.equals(other.name))\r
 165             return false;\r
 166         if (!parent.equals(other.parent))\r
 167             return false;\r
 168         if (!ObjectUtils.objectEquals(value, other.value))\r
 169             return false;\r
 170         return ObjectUtils.objectEquals(binding, other.binding);\r
 171     }\r
 172 \r
 173 }\r