X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fvariable%2FSCLValueAccessor.java;h=082caa603ba486bf4319f102434d184c5fdedd14;hb=15af8a20abe8b2ba24b52c9da8bce6c92351dc43;hp=82dcec1c63485c4dc38565a5f886dd2f8dc2861e;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/SCLValueAccessor.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/SCLValueAccessor.java
index 82dcec1c6..082caa603 100644
--- a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/SCLValueAccessor.java
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/SCLValueAccessor.java
@@ -1,96 +1,99 @@
-package org.simantics.db.layer0.variable;
-
-import org.simantics.databoard.binding.Binding;
-import org.simantics.databoard.type.Datatype;
-import org.simantics.db.ReadGraph;
-import org.simantics.db.WriteGraph;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.scl.runtime.SCLContext;
-import org.simantics.scl.runtime.function.Function1;
-import org.simantics.scl.runtime.function.Function2;
-import org.simantics.scl.runtime.function.Function3;
-
-public class SCLValueAccessor implements ValueAccessor {
-
-	private final Function1<Variable,Object> getValue1;
-	private final Function2<Variable,Binding,Object> getValue2;
-	private final Function2<Variable,Object,Object> setValue2;
-	private final Function3<Variable,Object,Binding,Object> setValue3;
-	private final Function1<Variable,Datatype> getDatatype;
-	
-	public SCLValueAccessor(Function1<Variable, Object> getValue1, Function2<Variable, Binding, Object> getValue2,
-			Function2<Variable, Object, Object> setValue2, Function3<Variable, Object, Binding, Object> setValue3,
-			Function1<Variable, Datatype> getDatatype) {
-		this.getValue1 = getValue1;
-		this.getValue2 = getValue2;
-		this.setValue2 = setValue2;
-		this.setValue3 = setValue3;
-		this.getDatatype = getDatatype;
-	}
-
-	@Override
-	public Object getValue(ReadGraph graph, Variable context) throws DatabaseException {
-        SCLContext sclContext = SCLContext.getCurrent();
-        Object oldGraph = sclContext.put("graph", graph);
-        try {
-            return getValue1.apply(context);
-        } catch (Throwable t) {
-            throw new DatabaseException(t);
-        } finally {
-            sclContext.put("graph", oldGraph);
-        }
-	}
-
-	@Override
-	public Object getValue(ReadGraph graph, Variable context, Binding binding) throws DatabaseException {
-        SCLContext sclContext = SCLContext.getCurrent();
-        Object oldGraph = sclContext.put("graph", graph);
-        try {
-            return getValue2.apply(context, binding);
-        } catch (Throwable t) {
-            throw new DatabaseException(t);
-        } finally {
-            sclContext.put("graph", oldGraph);
-        }
-	}
-
-	@Override
-	public void setValue(WriteGraph graph, Variable context, Object value) throws DatabaseException {
-        SCLContext sclContext = SCLContext.getCurrent();
-        Object oldGraph = sclContext.put("graph", graph);
-        try {
-            setValue2.apply(context, value);
-        } catch (Throwable t) {
-            throw new DatabaseException(t);
-        } finally {
-            sclContext.put("graph", oldGraph);
-        }
-	}
-
-	@Override
-	public void setValue(WriteGraph graph, Variable context, Object value, Binding binding) throws DatabaseException {
-        SCLContext sclContext = SCLContext.getCurrent();
-        Object oldGraph = sclContext.put("graph", graph);
-        try {
-            setValue3.apply(context, value, binding);
-        } catch (Throwable t) {
-            throw new DatabaseException(t);
-        } finally {
-            sclContext.put("graph", oldGraph);
-        }
-	}
-
-	@Override
-	public Datatype getDatatype(ReadGraph graph, Variable context) throws DatabaseException {
-        SCLContext sclContext = SCLContext.getCurrent();
-        Object oldGraph = sclContext.put("graph", graph);
-        try {
-            return getDatatype.apply(context);
-        } catch (Throwable t) {
-            throw new DatabaseException(t);
-        } finally {
-            sclContext.put("graph", oldGraph);
-        }
-	}
-
-}
+package org.simantics.db.layer0.variable;
+
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.type.Datatype;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.DatatypeNotFoundException;
+import org.simantics.db.layer0.exception.MissingVariableValueException;
+import org.simantics.db.layer0.exception.NonWritableVariableException;
+import org.simantics.scl.runtime.SCLContext;
+import org.simantics.scl.runtime.function.Function1;
+import org.simantics.scl.runtime.function.Function2;
+import org.simantics.scl.runtime.function.Function3;
+
+public class SCLValueAccessor implements ValueAccessor {
+
+	private final Function1<Variable,Object> getValue1;
+	private final Function2<Variable,Binding,Object> getValue2;
+	private final Function2<Variable,Object,Object> setValue2;
+	private final Function3<Variable,Object,Binding,Object> setValue3;
+	private final Function1<Variable,Datatype> getDatatype;
+	
+	public SCLValueAccessor(Function1<Variable, Object> getValue1, Function2<Variable, Binding, Object> getValue2,
+			Function2<Variable, Object, Object> setValue2, Function3<Variable, Object, Binding, Object> setValue3,
+			Function1<Variable, Datatype> getDatatype) {
+		this.getValue1 = getValue1;
+		this.getValue2 = getValue2;
+		this.setValue2 = setValue2;
+		this.setValue3 = setValue3;
+		this.getDatatype = getDatatype;
+	}
+
+	@Override
+	public Object getValue(ReadGraph graph, Variable context) throws DatabaseException {
+        SCLContext sclContext = SCLContext.getCurrent();
+        Object oldGraph = sclContext.put("graph", graph);
+        try {
+            return getValue1.apply(context);
+        } catch (Throwable t) {
+            throw new MissingVariableValueException("Could not get value for " + String.valueOf(context.getRepresents(graph)), t);
+        } finally {
+            sclContext.put("graph", oldGraph);
+        }
+	}
+
+	@Override
+	public Object getValue(ReadGraph graph, Variable context, Binding binding) throws DatabaseException {
+        SCLContext sclContext = SCLContext.getCurrent();
+        Object oldGraph = sclContext.put("graph", graph);
+        try {
+            return getValue2.apply(context, binding);
+        } catch (Throwable t) {
+            throw new MissingVariableValueException("Could not get value for " + String.valueOf(context.getRepresents(graph)) + " with binding " + binding, t);
+        } finally {
+            sclContext.put("graph", oldGraph);
+        }
+	}
+
+	@Override
+	public void setValue(WriteGraph graph, Variable context, Object value) throws DatabaseException {
+        SCLContext sclContext = SCLContext.getCurrent();
+        Object oldGraph = sclContext.put("graph", graph);
+        try {
+            setValue2.apply(context, value);
+        } catch (Throwable t) {
+            throw new NonWritableVariableException("Could not write value " + String.valueOf(value) + " for " + String.valueOf(context.getRepresents(graph)), t);
+        } finally {
+            sclContext.put("graph", oldGraph);
+        }
+	}
+
+	@Override
+	public void setValue(WriteGraph graph, Variable context, Object value, Binding binding) throws DatabaseException {
+        SCLContext sclContext = SCLContext.getCurrent();
+        Object oldGraph = sclContext.put("graph", graph);
+        try {
+            setValue3.apply(context, value, binding);
+        } catch (Throwable t) {
+            throw new NonWritableVariableException("Could not write value " + String.valueOf(value) + " for " + String.valueOf(context.getRepresents(graph)) + " with binding " + binding, t);
+        } finally {
+            sclContext.put("graph", oldGraph);
+        }
+	}
+
+	@Override
+	public Datatype getDatatype(ReadGraph graph, Variable context) throws DatabaseException {
+        SCLContext sclContext = SCLContext.getCurrent();
+        Object oldGraph = sclContext.put("graph", graph);
+        try {
+            return getDatatype.apply(context);
+        } catch (Throwable t) {
+            throw new DatatypeNotFoundException("Could not find datatype for " + String.valueOf(context.getRepresents(graph)), t);
+        } finally {
+            sclContext.put("graph", oldGraph);
+        }
+	}
+
+}