bundles/org.simantics.databoard/src/org/simantics/databoard/binding/factory/MutableBindingFactory.java

   1 /*******************************************************************************\r
   2  *  Copyright (c) 2010 Association for Decentralized Information Management in\r
   3  *  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 org.simantics.databoard.binding.factory;
  13
  14 import java.util.Map;\r
  15 \r
  16 import org.simantics.databoard.Bindings;\r
  17 import org.simantics.databoard.binding.Binding;\r
  18 import org.simantics.databoard.binding.error.BindingConstructionException;\r
  19 import org.simantics.databoard.binding.impl.ArrayListBinding;\r
  20 import org.simantics.databoard.binding.impl.TreeMapBinding;\r
  21 import org.simantics.databoard.binding.mutable.ContainerOptionalBinding;\r
  22 import org.simantics.databoard.binding.mutable.MutableBooleanBinding;\r
  23 import org.simantics.databoard.binding.mutable.MutableByteBinding;\r
  24 import org.simantics.databoard.binding.mutable.MutableDoubleBinding;\r
  25 import org.simantics.databoard.binding.mutable.MutableFloatBinding;\r
  26 import org.simantics.databoard.binding.mutable.MutableIntegerBinding;\r
  27 import org.simantics.databoard.binding.mutable.MutableLongBinding;\r
  28 import org.simantics.databoard.binding.mutable.MutableStringBinding;\r
  29 import org.simantics.databoard.binding.mutable.UnionTaggedObjectBinding;\r
  30 import org.simantics.databoard.type.ArrayType;\r
  31 import org.simantics.databoard.type.BooleanType;\r
  32 import org.simantics.databoard.type.ByteType;\r
  33 import org.simantics.databoard.type.Datatype;\r
  34 import org.simantics.databoard.type.DoubleType;\r
  35 import org.simantics.databoard.type.FloatType;\r
  36 import org.simantics.databoard.type.IntegerType;\r
  37 import org.simantics.databoard.type.LongType;\r
  38 import org.simantics.databoard.type.MapType;\r
  39 import org.simantics.databoard.type.OptionalType;\r
  40 import org.simantics.databoard.type.RecordType;\r
  41 import org.simantics.databoard.type.StringType;\r
  42 import org.simantics.databoard.type.UnionType;\r
  43
  44 /**
  45  * MutableBindingScheme is a type to binding mapping that binds any DataType to an Object.\r
  46  * All resulting bindings are completely mutable java classes.
  47  *
  48  * DataType           | Class of the bound instance
  49  * ===================|==================
  50  * BooleanType        | MutableBoolean.class
  51  * ByteType           | MutableByte.class
  52  * FloatType          | MutableFloat.class
  53  * DoubleType         | MutableDouble.class
  54  * IntegerType        | MutableInt.class
  55  * LongType           | MutableLong.class
  56  * StringType         | MutableString.class
  57  * UnionType          | TaggedObject.class
  58  * OptionType         | ValueContainer.class
  59  * RecordType         | Object[].class
  60  * ArrayType          | ArrayList.class
  61  * MapType            | TreeMap.class
  62  * VariantType        | MutableVariant.class
  63  *
  64  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
  65  */
  66 \r
  67 public class MutableBindingFactory extends TypeBindingFactory {\r
  68 \r
  69         /**\r
  70          * Construct a binding factory.\r
  71          */\r
  72         public MutableBindingFactory() {\r
  73                 super();\r
  74         }\r
  75         \r
  76         /**\r
  77          * Construct a scheme factory that appends constructed bindings to the user given\r
  78          * repository  \r
  79          * \r
  80          * @param repository repository where bindings are placed\r
  81          */\r
  82         public MutableBindingFactory(Map<Datatype, Binding> repository) {\r
  83                 super(repository);\r
  84         }\r
  85 \r
  86         @Override\r
  87         protected Binding doConstruct(Datatype type)\r
  88                         throws BindingConstructionException {\r
  89 \r
  90                 // Exact, non-annotated types\r
  91                 if (type.equals( Bindings.BOOLEAN.type() )) return Bindings.MUTABLE_BOOLEAN;\r
  92                 if (type.equals( Bindings.BYTE.type() )) return Bindings.MUTABLE_BYTE;\r
  93                 if (type.equals( Bindings.INTEGER.type() )) return Bindings.MUTABLE_INTEGER;\r
  94                 if (type.equals( Bindings.LONG.type() )) return Bindings.MUTABLE_LONG;\r
  95                 if (type.equals( Bindings.FLOAT.type() )) return Bindings.MUTABLE_FLOAT;\r
  96                 if (type.equals( Bindings.DOUBLE.type() )) return Bindings.MUTABLE_DOUBLE;\r
  97                 if (type.equals( Bindings.STRING.type() )) return Bindings.MUTABLE_STRING;\r
  98                 if (type.equals( Bindings.VARIANT.type() )) return Bindings.MUTABLE_VARIANT;\r
  99                 \r
 100                 // Annotated types \r
 101                 if (type instanceof BooleanType) return new MutableBooleanBinding((BooleanType)type);\r
 102                 if (type instanceof DoubleType) return new MutableDoubleBinding((DoubleType)type);\r
 103                 if (type instanceof FloatType) return new MutableFloatBinding((FloatType)type);\r
 104                 if (type instanceof ByteType) return new MutableByteBinding((ByteType)type);\r
 105                 if (type instanceof IntegerType) return new MutableIntegerBinding((IntegerType)type);\r
 106                 if (type instanceof LongType) return new MutableLongBinding((LongType)type);\r
 107                 if (type instanceof StringType) return new MutableStringBinding((StringType)type);\r
 108                 \r
 109                 // Constructed types\r
 110                 if (type instanceof ArrayType) {\r
 111                         ArrayType arrayType = (ArrayType) type;\r
 112                         Datatype componentType = arrayType.componentType();\r
 113 \r
 114                         ArrayListBinding binding = new ArrayListBinding(arrayType, null);\r
 115                         inprogress.put(type, binding);\r
 116                         binding.componentBinding = construct( componentType );                                          \r
 117                         inprogress.remove(type);\r
 118                         return binding;\r
 119                 }\r
 120                 \r
 121                 if (type instanceof OptionalType) {\r
 122                         OptionalType optionalType = (OptionalType) type;\r
 123                         Datatype componentType = optionalType.componentType;\r
 124                         ContainerOptionalBinding binding = new ContainerOptionalBinding( optionalType, null );\r
 125                         inprogress.put(type, binding);\r
 126                         binding.componentBinding = construct( componentType );\r
 127                         inprogress.remove(type);\r
 128                         return binding;\r
 129                 }\r
 130                 \r
 131                 if (type instanceof RecordType) {                       \r
 132                         RecordType recordType = (RecordType) type;\r
 133                         Binding componentBindings[] = new Binding[ recordType.getComponentCount() ];\r
 134                         RecordObjectArrayBinding binding = new RecordObjectArrayBinding(recordType, componentBindings);\r
 135                         inprogress.put(type, binding);\r
 136                         for (int i=0; i<componentBindings.length; i++) {\r
 137                                 componentBindings[i] = construct( recordType.getComponentType(i) );\r
 138                         }\r
 139                         inprogress.remove(type);\r
 140                         return binding;\r
 141                 }\r
 142                 \r
 143                 if (type instanceof UnionType) {\r
 144                         UnionType unionType = (UnionType) type;\r
 145                         Binding componentBindings[] = new Binding[ unionType.components.length ];\r
 146                         UnionTaggedObjectBinding binding = new UnionTaggedObjectBinding(unionType, componentBindings);\r
 147                         inprogress.put(type, binding);\r
 148                         for (int i=0; i<componentBindings.length; i++) {\r
 149                                 componentBindings[i] = construct( unionType.getComponent(i).type );\r
 150                         }\r
 151                         inprogress.remove(type);\r
 152                         return binding;\r
 153                 }               \r
 154                 \r
 155                 if (type instanceof MapType) {                  \r
 156                         MapType mapType = (MapType) type;\r
 157                         TreeMapBinding binding = new TreeMapBinding(mapType, null, null);\r
 158                         inprogress.put(type, binding);\r
 159                         binding.setKeyBinding( construct(mapType.keyType) );\r
 160                         binding.setValueBinding( construct(mapType.valueType) );\r
 161                         inprogress.remove(type);\r
 162                         return binding;\r
 163                 }\r
 164                 \r
 165                 throw new BindingConstructionException("Unexpected, I don't know how to create binding for "+type);\r
 166         }\r
 167 \r
 168         @Override\r
 169         public boolean supportsType(Datatype type) {\r
 170                 // unexpected\r
 171                 if (failures.containsKey(type)) return false;\r
 172                 return true;\r
 173         }\r
 174         \r
 175 }\r
 176 \r
 177 \r
 178 \r
 179
 180
 181