X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fvariable%2FStandardGraphResourcePropertyVariable.java;h=6fa5127db65112153c8858617874d6506d82d570;hb=1ecae6e1ad40507badb8807fb14bb67b4adf199c;hp=aedfcb5ae0692c815c7060b8353b7f4bda35b181;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardGraphResourcePropertyVariable.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardGraphResourcePropertyVariable.java
index aedfcb5ae..6fa5127db 100644
--- a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardGraphResourcePropertyVariable.java
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardGraphResourcePropertyVariable.java
@@ -1,47 +1,50 @@
-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.Resource;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.db.exception.NoSingleResultException;
-import org.simantics.db.layer0.exception.MissingVariableValueException;
-import org.simantics.db.layer0.exception.VariableException;
-
-public class StandardGraphResourcePropertyVariable extends StandardGraphPropertyVariable {
-	
-	public StandardGraphResourcePropertyVariable(ReadGraph graph, Variable parent, Resource parentResource, Resource property) throws DatabaseException {
-	    super(graph, parent, null, parentResource, property);
-	}
-
-	@Override
-	public <T> T getValue(ReadGraph graph) throws DatabaseException {
-		if (parentResource == null)
-			throw new VariableException("Variable is not represented by any resource (URI=" + getPossibleURI(graph) + ").");
-		try {
-	        return (T)graph.getSingleObject(parentResource, property.predicate);
-		} catch (NoSingleResultException e) {
-			System.err.println("No object for " + parentResource + " " + property);
-			throw new MissingVariableValueException(getPossibleURI(graph));
-		} 
-	}
-
-	@Override
-	public <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException {
-		if (parentResource == null)
-			throw new VariableException("Variable is not represented by any resource (URI=" + getPossibleURI(graph) + ").");
-		try {
-            return (T)graph.getSingleObject(parentResource, property.predicate);
-		} catch (NoSingleResultException e) {
-			System.err.println("No object for " + parentResource + " " + property);
-			throw new MissingVariableValueException(getPossibleURI(graph));
-		} 
-	}
-	
-	@Override
-	public Datatype getDatatype(ReadGraph graph) throws DatabaseException {
-	    return null;
-	}
-	
-}
+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.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.NoSingleResultException;
+import org.simantics.db.layer0.exception.MissingVariableValueException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class StandardGraphResourcePropertyVariable extends StandardGraphPropertyVariable {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(StandardGraphResourcePropertyVariable.class);
+
+	public StandardGraphResourcePropertyVariable(ReadGraph graph, Variable parent, Resource parentResource, Resource property) throws DatabaseException {
+	    super(graph, parent, null, parentResource, property);
+	}
+
+	@Override
+	public <T> T getValue(ReadGraph graph) throws DatabaseException {
+		if (parentResource == null)
+			throw new MissingVariableValueException("Variable is not represented by any resource (URI=" + getPossibleURI(graph) + ").");
+		try {
+	        return (T)graph.getSingleObject(parentResource, property.predicate);
+		} catch (NoSingleResultException e) {
+			LOGGER.error("No object for " + parentResource + " " + property);
+			throw new MissingVariableValueException(getPossibleURI(graph), e);
+		} 
+	}
+
+	@Override
+	public <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException {
+		if (parentResource == null)
+			throw new MissingVariableValueException("Variable is not represented by any resource (URI=" + getPossibleURI(graph) + ").");
+		try {
+            return (T)graph.getSingleObject(parentResource, property.predicate);
+		} catch (NoSingleResultException e) {
+			LOGGER.error("No object for " + parentResource + " " + property);
+			throw new MissingVariableValueException(getPossibleURI(graph), e);
+		} 
+	}
+	
+	@Override
+	public Datatype getDatatype(ReadGraph graph) throws DatabaseException {
+	    return null;
+	}
+	
+}