X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fbinding%2Freflection%2FConstantBinding.java;fp=bundles%2Forg.simantics.databoard%2Fsrc%2Forg%2Fsimantics%2Fdataboard%2Fbinding%2Freflection%2FConstantBinding.java;h=d3ba7a7ad99dda59aa2b87a7fa71283a1c109061;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/reflection/ConstantBinding.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/reflection/ConstantBinding.java
new file mode 100644
index 000000000..d3ba7a7ad
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+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/binding/reflection/ConstantBinding.java
@@ -0,0 +1,75 @@
+/*******************************************************************************
+ *  Copyright (c) 2010 Association for Decentralized Information Management in
+ *  Industry THTH ry.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.databoard.binding.reflection;
+
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.binding.RecordBinding;
+import org.simantics.databoard.binding.error.BindingException;
+import org.simantics.databoard.type.Datatype;
+
+public class ConstantBinding extends RecordBinding {
+
+    Object value;
+    
+    public ConstantBinding(Datatype type, Object constantValue) {
+        this.type = type;
+        this.componentBindings = new Binding[0];
+        this.value = constantValue;
+    }
+
+    @Override
+    public Object create(Object... value) throws BindingException {
+        return this.value;
+    }
+
+    @Override
+    public Object getComponent(Object obj, int index) throws BindingException {
+        throw new BindingException();
+    }
+
+    @Override
+    public Object createPartial() throws BindingException {
+        return value;
+    }
+
+    @Override
+    public void setComponents(Object obj, Object... value) throws BindingException {
+//        throw new BindingException();
+    }
+    
+    @Override
+    public void setComponent(Object obj, int index, Object value)
+   		throws BindingException {
+//        throw new BindingException();
+    }
+
+    @Override
+    public boolean isInstance(Object obj) {
+        return obj==value;
+    }
+    
+	@Override
+	public boolean isImmutable() {
+		return true;
+	}
+	
+	@Override
+	protected boolean baseEquals( Object obj ) {
+	    return super.baseEquals( obj ) && value == ((ConstantBinding)obj).value;
+	}
+	
+	@Override
+	public int baseHashCode() {
+	    return super.baseHashCode() + 7 * value.hashCode(); 
+	}    
+}
+