]> gerrit.simantics Code Review - simantics/platform.git/blobdiff - bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/IntArrayBinding.java
Migrated source code from Simantics SVN
[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / binding / impl / IntArrayBinding.java
diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/IntArrayBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/IntArrayBinding.java
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+/*******************************************************************************\r
+ *  Copyright (c) 2010 Association for Decentralized Information Management in\r
+ *  Industry THTH ry.\r
+ *  All rights reserved. This program and the accompanying materials\r
+ *  are made available under the terms of the Eclipse Public License v1.0\r
+ *  which accompanies this distribution, and is available at\r
+ *  http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ *  Contributors:\r
+ *      VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.binding.impl;
+
+import java.lang.reflect.Array;\r
+import java.util.IdentityHashMap;\r
+import java.util.Iterator;\r
+import java.util.Set;\r
+\r
+import org.simantics.databoard.binding.ArrayBinding;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.binding.IntegerBinding;\r
+import org.simantics.databoard.binding.error.BindingException;\r
+import org.simantics.databoard.binding.error.UnsupportedOperationException;\r
+import org.simantics.databoard.type.ArrayType;\r
+import org.simantics.databoard.type.IntegerType;\r
+import org.simantics.databoard.type.NumberType;\r
+import org.simantics.databoard.util.IdentityPair;\r
+
+/**
+ * Binds Integer[] Type to int[] Class.
+ */
+public final class IntArrayBinding extends ArrayBinding {
+       
+       public static IntArrayBinding createFrom(ArrayType type) {\r
+               return new IntArrayBinding(type, new IntegerBindingDefault((IntegerType) type.componentType));\r
+       }\r
+\r
+       public IntArrayBinding(ArrayType type, Binding componentBinding) {\r
+               super(type, componentBinding);\r
+       }\r
+\r
+       @Override
+       public Object create() {
+               return new int[0];
+       }
+       
+       @Override
+       public Object create(int length, Iterator<Object> values) {
+               int[] array = new int[length];
+               for(int i=0;i<length;++i)
+                       array[i] = (Integer)values.next();
+               return array;
+       }
+       
+       public Object create(Object[] values) {
+               int[] result = new int[values.length];
+               for (int i=0; i<values.length; i++)
+                       result[i] = (Integer) values[i];
+               return result;
+       }       
+       
+       /**
+        * Create an array object.
+        * Note! The argument is consumed (is used in the result).
+        * 
+        * @param array
+        * @return an object that contains the array
+        */
+       public Object create(int[] array) {
+               return array;
+       }\r
+       \r
+       @Override\r
+    public Object createDefault()\r
+    throws BindingException\r
+    {\r
+               NumberType nt = (NumberType) type().componentType;\r
+               if (nt.getRange() == null) {\r
+               return new int[ type().minLength() ];\r
+               }\r
+               return super.createDefault();\r
+    }  \r
+       
+\r
+       @Override\r
+       public void readFrom(Binding srcBinding, Object src, Object dst)\r
+                       throws BindingException {\r
+               // Src Binding\r
+               ArrayBinding sb = (ArrayBinding) srcBinding;\r
+               // Src Component Binding\r
+               IntegerBinding scb = (IntegerBinding) sb.getComponentBinding();\r
+               \r
+               int[] d = (int[]) dst;\r
+               if (d.length != sb.size(src)) throw new BindingException("int[] is length immutable");\r
+               \r
+               for (int i=0; i<d.length; i++) {\r
+                       d[i] = scb.getValue_( sb.get(src, i) );\r
+               }\r
+       }       \r
+       \r
+\r
+       @Override\r
+       public Object readFromTry(Binding srcBinding, Object src, Object dst)\r
+                       throws BindingException {\r
+               // Src Binding\r
+               ArrayBinding sb = (ArrayBinding) srcBinding;\r
+               // Src Component Binding\r
+               IntegerBinding scb = (IntegerBinding) sb.getComponentBinding();\r
+               \r
+               int[] d = (int[]) dst;\r
+               int srcSize = sb.size(src);\r
+               if (d.length != srcSize) d = new int[ srcSize ];\r
+               \r
+               for (int i=0; i<d.length; i++) {\r
+                       d[i] = scb.getValue_( sb.get(src, i) );\r
+               }\r
+               return d;\r
+       }               \r
+       
+       @Override
+       public Object get(Object array, int index) throws BindingException {
+               if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", int[] expected");
+               return ((int[])array)[index];
+       }
+       
+       @Override
+       public void getAll(Object array, Object[] result) throws BindingException {
+               int[] a = (int[])array;
+               for (int i=0; i<a.length; i++)
+                       result[i] = a[i];
+       }       
+       
+       @Override
+       public void set(Object array, int index, Object value)
+                       throws BindingException {
+               int[] a = (int[])array;
+               a[index] = (Integer) value;
+       }       
+
+       @Override
+       public int size(Object array) throws BindingException {
+               if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", int[] expected");
+               return ((int[])array).length;
+       }
+
+       @Override
+       public boolean isInstance(Object obj) {
+               return obj instanceof int[];
+       }
+       
+       @Override
+       public boolean isImmutable() {
+               return false;
+       }       
+       
+       public int[] getArray(Object array) throws BindingException {
+               if (!isInstance(array)) throw new BindingException("Unexpected class "+array.getClass().getSimpleName()+", int[] expected");
+               return (int[]) array;
+       }       
+
+    @Override
+    public int deepHashValue(Object value, IdentityHashMap<Object, Object> hashedObjects) throws BindingException {
+       int result = 1;
+       int[] array = (int[]) value;
+       for (int i=0; i<array.length; i++) {
+               result = 31*result + array[i];
+       }
+       return result;
+    }
+       
+    @Override
+    public int deepCompare(Object o1, Object o2,
+               Set<IdentityPair<Object, Object>> compareHistory)
+               throws BindingException {
+       int[] i1 = (int[]) o1;
+       int[] i2 = (int[]) o2;
+               // Compare Lengths
+               int l1 = i1.length;
+               int l2 = i2.length;
+               int dif = l1 - l2;
+               if (dif!=0) return dif;
+               // Compare elements
+               for (int i=0; i<l1; i++) {
+                       int v1 = i1[i];
+                       int v2 = i2[i];
+                       dif = (v1<v2 ? -1 : (v1==v2 ? 0 : 1));
+                       if (dif!=0) return dif;
+               }
+               return 0;
+    }    
+
+    @Override
+    public void add(Object array, int index, Object element)
+               throws BindingException, IndexOutOfBoundsException {
+       throw new UnsupportedOperationException();
+    }
+    
+       @Override
+       public void remove(Object array, int index, int count) throws BindingException {
+       throw new UnsupportedOperationException();
+       }\r
+\r
+       @Override\r
+       public void setSize(Object array, int newSize) throws BindingException {\r
+               int oldSize = Array.getLength(array);\r
+               if (oldSize==newSize) return;\r
+               throw new BindingException("int[] is length immutable");\r
+       }       \r
+
+       @Override\r
+       public boolean isResizable() {\r
+               return false;\r
+       }\r
+    
+}