X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fvariable%2FConstantChildVariable.java;fp=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fvariable%2FConstantChildVariable.java;h=2bfa3862cc74b9e40d1222c218c33073f9627b41;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/ConstantChildVariable.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/ConstantChildVariable.java
new file mode 100644
index 000000000..2bfa3862c
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/ConstantChildVariable.java
@@ -0,0 +1,161 @@
+package org.simantics.db.layer0.variable;
+
+import gnu.trove.map.hash.THashMap;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.simantics.databoard.binding.Binding;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.NoSingleResultException;
+
+public class ConstantChildVariable extends AbstractChildVariable {
+
+    final Variable parent;
+    final String name;
+    final Map<String, ConstantPropertyVariable> properties;
+
+    public ConstantChildVariable(Variable parent, String name) {
+        this.parent = parent;
+        this.name = name;
+        this.properties = new THashMap<String, ConstantPropertyVariable>();
+    }
+
+    public ConstantChildVariable(Variable parent, String name, Collection<ConstantPropertyVariableBuilder> propertyBuilders) {
+    	this(parent, name);
+    	for(ConstantPropertyVariableBuilder b : propertyBuilders) {
+    		ConstantPropertyVariable property = b.build(this);
+    		properties.put(b.getName(), property);
+    	}
+    }
+    
+    public ConstantChildVariable(Variable parent, String name, ConstantPropertyVariableBuilder ... propertyBuilders) {
+    	this(parent, name);
+    	for(ConstantPropertyVariableBuilder b : propertyBuilders) {
+    		ConstantPropertyVariable property = b.build(this);
+    		properties.put(b.getName(), property);
+    	}
+    }
+
+    public ConstantChildVariable(Variable parent, String name, String[] propertyNames, Binding[] bindings, Object ... values) {
+
+    	this(parent, name);
+
+    	buildProperties(this, propertyNames, bindings, values, properties);
+
+    }
+
+    private Map<String, Variable> buildProperties(Variable parent, String[] propertyNames, Binding[] bindings, Object ... values) {
+
+        assert parent != null;
+        assert propertyNames.length == bindings.length;
+        assert propertyNames.length == values.length;
+
+    	Map<String, Variable> result = new HashMap<String, Variable>();
+    	
+    	for(int i=0;i<values.length;i++) {
+    		String property = propertyNames[i];
+    		result.put(property, new ConstantPropertyVariable(parent, property, values[i], bindings[i]));
+    	}
+    	
+    	return result;
+
+    }
+
+    @Override
+    public Map<String, Variable> collectDomainProperties(ReadGraph graph, Map<String, Variable> properties) throws DatabaseException {
+    	if(properties == null) properties = new HashMap<String,Variable>(this.properties.size());
+    	properties.putAll(this.properties);
+    	return properties;
+    }
+    
+    @Override
+    public Variable getPossibleDomainProperty(ReadGraph graph, String name) throws DatabaseException {
+    	return properties.get(name);
+    }
+    
+    @Override
+    public Variable getParent(ReadGraph graph) throws DatabaseException {
+    	return parent;
+    }
+    
+//    @Override
+//    public Object getSerialized(ReadGraph graph) throws DatabaseException {
+//    	return getName(graph);
+//    }
+    
+    @Override
+    public String getName(ReadGraph graph) throws DatabaseException {
+    	return name;
+    }
+
+    @Override
+    public String getLabel(ReadGraph graph) throws DatabaseException {
+    	Variable variable = getPossibleDomainProperty(graph, Variables.LABEL);
+    	if(variable != null) return variable.getValue(graph);
+    	else return name;
+    }
+
+    @Override
+    public Resource getRepresents(ReadGraph graph) throws DatabaseException {
+    	return null;
+//    	Variable variable = getPossibleDomainProperty(graph, Variables.REPRESENTS);
+//    	if(variable != null) return variable.getValue(graph);
+//    	else return null;
+    }
+
+    @Override
+    public Resource getType(ReadGraph graph) throws DatabaseException {
+    	return getDomainProperty(graph, Variables.TYPE).getValue(graph);
+    }
+
+    @Override
+    public Resource getPossibleType(ReadGraph graph) throws DatabaseException {
+    	Variable v = getPossibleDomainProperty(graph, Variables.TYPE);
+    	return v != null ? v.<Resource>getPossibleValue(graph) : null;
+    }
+
+    @Override
+    public Resource getType(ReadGraph graph, Resource baseType) throws DatabaseException {
+    	Resource type = getPossibleType(graph, baseType);
+    	if (type != null)
+    		return type;
+    	throw new NoSingleResultException("variable " + getPossibleURI(graph) + " has no type");
+    }
+
+    @Override
+    public Resource getPossibleType(ReadGraph graph, Resource baseType) throws DatabaseException {
+    	Variable typev = getPossibleDomainProperty(graph, Variables.TYPE);
+    	if (typev == null)
+    		return null;
+    	Resource type = typev.getValue(graph);
+    	return type != null && graph.isInheritedFrom(type, baseType) ? type : null;
+    }
+
+    @Override
+    public Collection<Variable> getProperties(ReadGraph graph, String classification) throws DatabaseException {
+    	Collection<Variable> result = null;
+    	Variable singleResult = null;
+    	for(ConstantPropertyVariable property : properties.values()) {
+    		if(property.getClassifications(graph).contains(classification)) {
+    			if(result == null && singleResult == null) singleResult = property;
+    			else if(result == null && singleResult != null) {
+    				result = new ArrayList<Variable>();
+    				result.add(singleResult);
+    				result.add(property);
+    			} else {
+    				result.add(property);
+    			}
+    		}
+    	}
+    	if(result != null) return result;
+    	if(singleResult != null) return Collections.singletonList(singleResult);
+    	else return Collections.emptyList();
+    } 
+
+}