-package org.simantics.db.layer0.variable;\r
-\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.Map;\r
-import java.util.Set;\r
-\r
-import org.simantics.databoard.binding.Binding;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.common.uri.UnescapedChildMapOfResource;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.layer0.exception.MissingVariableValueException;\r
-import org.simantics.db.layer0.variable.RVI.RVIPart;\r
-import org.simantics.db.layer0.variable.RVI.StringRVIPart;\r
-import org.simantics.db.layer0.variable.Variables.Role;\r
-\r
-public abstract class AbstractChildVariable extends AbstractVariable {\r
- \r
- public AbstractChildVariable() {\r
- this(null);\r
- }\r
- \r
- public AbstractChildVariable(VariableNode node) {\r
- super(node);\r
- }\r
-\r
- @Override\r
- public Role getRole(ReadGraph graph) throws DatabaseException {\r
- return Role.CHILD;\r
- }\r
- \r
- @Override\r
- public <T> T getValue(ReadGraph graph) throws DatabaseException {\r
- throw new MissingVariableValueException("No value in child variable.");\r
- }\r
- \r
- @Override\r
- public <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException {\r
- throw new MissingVariableValueException("No value in child variable.");\r
- }\r
- \r
- @Override\r
- public void setValue(WriteGraph graph, Object value, Binding binding)\r
- throws DatabaseException {\r
- throw new DatabaseException("Cannot write value to a child variable.");\r
- }\r
-\r
- \r
- @Override\r
- public Resource getRepresents(ReadGraph graph) throws DatabaseException {\r
- Variable parent = getParent(graph);\r
- if(!(parent instanceof AbstractChildVariable))\r
- return null;\r
- Resource parentRepresents = \r
- ((AbstractChildVariable)parent).getRepresentsForBrowsingChildResources(graph);\r
- if(parentRepresents == null)\r
- return null;\r
- Resource result = graph.syncRequest(new UnescapedChildMapOfResource(parentRepresents))\r
- .get(getName(graph)); \r
-// System.err.println("getRepresents " + getURI(graph) + " -> parent " + parentRepresents + " " + this + " => " + result + " " + getName(graph));\r
- return result; \r
- }\r
- \r
- public Resource getRepresentsForBrowsingChildResources(ReadGraph graph) throws DatabaseException {\r
- return getRepresents(graph);\r
- }\r
- \r
- @Override\r
- public Variable getPossibleExtraProperty(ReadGraph graph, String name) throws DatabaseException {\r
- return null;\r
- }\r
- \r
- @Override\r
- public void collectExtraProperties(ReadGraph graph, Map<String, Variable> properties) throws DatabaseException {\r
- }\r
- \r
- @Override\r
- protected Variable getPossibleDomainProperty(ReadGraph graph, String name) throws DatabaseException {\r
- return null;\r
- }\r
- \r
- @Override\r
- public Variable getPossibleChild(ReadGraph graph, String name) throws DatabaseException {\r
- return null;\r
- }\r
- \r
- @Override\r
- public Map<String, Variable> collectDomainProperties(ReadGraph graph, Map<String, Variable> map) throws DatabaseException {\r
- return map;\r
- }\r
- \r
- @Override\r
- public Collection<Variable> getChildren(ReadGraph graph) throws DatabaseException {\r
- return Collections.emptyList();\r
- }\r
- \r
- @Override\r
- public RVIPart getRVIPart(ReadGraph graph) throws DatabaseException {\r
- return new StringRVIPart(Role.CHILD, getName(graph));\r
- }\r
-\r
- @Override\r
- public Set<String> getClassifications(ReadGraph graph) throws DatabaseException {\r
- return Collections.emptySet();\r
- }\r
-\r
-}\r
+package org.simantics.db.layer0.variable;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+
+import org.simantics.databoard.binding.Binding;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.uri.UnescapedChildMapOfResource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.exception.MissingVariableValueException;
+import org.simantics.db.layer0.exception.NonWritableVariableException;
+import org.simantics.db.layer0.variable.RVI.RVIPart;
+import org.simantics.db.layer0.variable.RVI.StringRVIPart;
+import org.simantics.db.layer0.variable.Variables.Role;
+
+public abstract class AbstractChildVariable extends AbstractVariable {
+
+ public AbstractChildVariable() {
+ this(null);
+ }
+
+ public AbstractChildVariable(VariableNode node) {
+ super(node);
+ }
+
+ @Override
+ public Role getRole(ReadGraph graph) throws DatabaseException {
+ return Role.CHILD;
+ }
+
+ @Override
+ public <T> T getValue(ReadGraph graph) throws DatabaseException {
+ throw new MissingVariableValueException("No value in child variable.");
+ }
+
+ @Override
+ public <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException {
+ throw new MissingVariableValueException("No value in child variable.");
+ }
+
+ @Override
+ public void setValue(WriteGraph graph, Object value, Binding binding) throws DatabaseException {
+ throw new NonWritableVariableException("Cannot write value to a child variable.");
+ }
+
+
+ @Override
+ public Resource getRepresents(ReadGraph graph) throws DatabaseException {
+ Variable parent = getParent(graph);
+ if(!(parent instanceof AbstractChildVariable))
+ return null;
+ Resource parentRepresents =
+ ((AbstractChildVariable)parent).getRepresentsForBrowsingChildResources(graph);
+ if(parentRepresents == null)
+ return null;
+ Resource result = graph.syncRequest(new UnescapedChildMapOfResource(parentRepresents))
+ .get(getName(graph));
+// System.err.println("getRepresents " + getURI(graph) + " -> parent " + parentRepresents + " " + this + " => " + result + " " + getName(graph));
+ return result;
+ }
+
+ public Resource getRepresentsForBrowsingChildResources(ReadGraph graph) throws DatabaseException {
+ return getRepresents(graph);
+ }
+
+ @Override
+ public Variable getPossibleExtraProperty(ReadGraph graph, String name) throws DatabaseException {
+ return null;
+ }
+
+ @Override
+ public void collectExtraProperties(ReadGraph graph, Map<String, Variable> properties) throws DatabaseException {
+ }
+
+ @Override
+ protected Variable getPossibleDomainProperty(ReadGraph graph, String name) throws DatabaseException {
+ return null;
+ }
+
+ @Override
+ public Variable getPossibleChild(ReadGraph graph, String name) throws DatabaseException {
+ return null;
+ }
+
+ @Override
+ public Map<String, Variable> collectDomainProperties(ReadGraph graph, Map<String, Variable> map) throws DatabaseException {
+ return map;
+ }
+
+ @Override
+ public Collection<Variable> getChildren(ReadGraph graph) throws DatabaseException {
+ return Collections.emptyList();
+ }
+
+ @Override
+ public RVIPart getRVIPart(ReadGraph graph) throws DatabaseException {
+ return new StringRVIPart(Role.CHILD, getName(graph));
+ }
+
+ @Override
+ public Set<String> getClassifications(ReadGraph graph) throws DatabaseException {
+ return Collections.emptySet();
+ }
+
+}