-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.db.layer0.variable;\r
-\r
-import java.util.Collection;\r
-import java.util.Set;\r
-\r
-import org.simantics.databoard.binding.Binding;\r
-import org.simantics.databoard.binding.mutable.Variant;\r
-import org.simantics.databoard.type.Datatype;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.layer0.exception.NonWritableVariableException;\r
-import org.simantics.db.layer0.request.PropertyInfo;\r
-import org.simantics.db.layer0.variable.RVI.RVIPart;\r
-import org.simantics.db.layer0.variable.Variables.Role;\r
-\r
-/*\r
- * Variable is a standard i/o data interface to a model in Simantics. The variable interface provides\r
- *\r
- * - Unified data addressing in string format (URI)\r
- * - Flattening of reusable component hierarchies\r
- * - Runtime values \r
- * - Derived values\r
- *\r
- * The Variable interface spans a tree of variables such that each node can have children and properties.\r
- * - children are denoted by the '/' separator\r
- * - properties are denoted by the '#' separator\r
- *\r
- * There are three kinds of URIs\r
- * \r
- * Variable URI:\r
- * A standard random access identifier to a variable.\r
- * Examples: \r
- * - http://www.asd.org/Projects/AprosModel1/BaseRealization/Diagram/PI_X#PI_MASS_FLOW\r
- * - http://www.asd.org/Projects/AprosModel1/Experiment/UUID/Diagram/PI_X#PI_MASS_FLOW#Unit\r
- * Realization URI:\r
- * A random access identifier to a context under which a valuation of a model is presented.\r
- * A realization URI is guaranteed to have a unique resource obtainable by ReadGraph.getResource()\r
- * Examples:\r
- * - http://www.asd.org/Projects/AprosModel1/BaseRealization\r
- * - http://www.asd.org/Projects/AprosModel1/Experiment/UUID\r
- * Relative Variable Identifier (RVI):\r
- * A reference which can be used to obtain a variable when realization is given \r
- * Examples:\r
- * - /Diagram/PI_X#PI_MASS_FLOW\r
- * - /Diagram/PI_X#PI_MASS_FLOW#Unit\r
- *\r
- * Use cases:\r
- * \r
- * 1. Given a configuration resource and context variable obtain variable\r
- * Procedure: call Variable.browse(ReadGraph, Resource)\r
- *\r
- * 2. Given two variables obtain RVI of second based on first\r
- * Procedure: call Variables.getRVI(Variable, Variable)\r
- * \r
- * 3. Given Realization URI obtain Variable\r
- * Procedure: call ReadGraph.getResource and then adapt(Resource, Variable.class)\r
- * \r
- * 4. Given Realization URI and RVI, obtain Variable\r
- * Procedure: obtain Variable from Realization URI, call Variable.browse(ReadGraph, String)\r
- * \r
- * 5. Given Variable URI, obtain Variable\r
- * Procedure: call Variables.getVariable(ReadGraph, String)\r
- * \r
- * 6. Given Variable, obtain model\r
- * Procedure: call Variables.getModel(ReadGraph, Variable)\r
- *\r
- * 7. Given Variable, obtain realization\r
- * Procedure: call Variables.getRealization(ReadGraph, Variable)\r
-\r
- * 8. Given Variable, obtain Variable in other realization\r
- * Procedure: call Variables.switchRealization(ReadGraph, Variable, Resource)\r
- * \r
- */\r
-\r
-\r
-public interface Variable {\r
-\r
- /*\r
- * Convenience method for getting the value of a named property.\r
- */\r
- <T> T getPropertyValue(ReadGraph graph, String name) throws DatabaseException;\r
- <T> T getPropertyValue(ReadGraph graph, Resource property) throws DatabaseException;\r
- <T> T getPossiblePropertyValue(ReadGraph graph, String name) throws DatabaseException;\r
- <T> T getPossiblePropertyValue(ReadGraph graph, Resource property) throws DatabaseException;\r
- /*\r
- * Convenience method for getting the value of a named property.\r
- */\r
- <T> T getPropertyValue(ReadGraph graph, String name, Binding binding) throws DatabaseException;\r
- <T> T getPropertyValue(ReadGraph graph, Resource property, Binding binding) throws DatabaseException;\r
- <T> T getPossiblePropertyValue(ReadGraph graph, String name, Binding binding) throws DatabaseException;\r
- <T> T getPossiblePropertyValue(ReadGraph graph, Resource property, Binding binding) throws DatabaseException;\r
- /*\r
- * Gets the value of the property. Binding is default.\r
- */\r
- <T> T getValue(ReadGraph graph) throws DatabaseException;\r
- <T> T getPossibleValue(ReadGraph graph) throws DatabaseException;\r
- /*\r
- * Gets the value of the property. Binding is explicitly given.\r
- */\r
- <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException;\r
- <T> T getPossibleValue(ReadGraph graph, Binding binding) throws DatabaseException;\r
- Variant getVariantValue(ReadGraph graph) throws DatabaseException;\r
- \r
- /*\r
- * If role is Property returns the corresponding PropertyInfo.\r
- * @throws DatabaseException if role of this variable is not Property\r
- */\r
- PropertyInfo getPropertyInfo(ReadGraph graph) throws DatabaseException;\r
-\r
- /**\r
- * @return the index root resource or <code>null</code> if the index root\r
- * cannot be found\r
- * @throws DatabaseException in any other error conditions\r
- */\r
- Resource getIndexRoot(ReadGraph graph) throws DatabaseException;\r
-\r
- /**\r
- * Writes a value using the given binding.\r
- * \r
- * @throws NonWritableVariableException if the variable is not writable\r
- * @throws DatabaseException in any other error conditions \r
- */\r
- void setValue(WriteGraph graph, Object value, Binding binding) throws DatabaseException;\r
- /**\r
- * Writes a value with default binding based on the value class.\r
- * \r
- * @throws NonWritableVariableException if the variable is not writable\r
- * @throws DatabaseException in any other error conditions \r
- */\r
- void setValue(WriteGraph graph, Object value) throws DatabaseException;\r
-\r
- /**\r
- * Writes a value to the given property using the given binding.\r
- * \r
- * @throws NonWritableVariableException if the variable is not writable\r
- * @throws DatabaseException in any other error conditions \r
- */\r
- void setPropertyValue(WriteGraph graph, String name, Object value, Binding binding) throws DatabaseException;\r
- void setPropertyValue(WriteGraph graph, Resource property, Object value, Binding binding) throws DatabaseException;\r
- /**\r
- * Writes a value to the given property using the default binding based on\r
- * the value class.\r
- * \r
- * @throws NonWritableVariableException if the variable is not writable\r
- * @throws DatabaseException in any other error conditions \r
- */\r
- void setPropertyValue(WriteGraph graph, String name, Object value) throws DatabaseException;\r
- void setPropertyValue(WriteGraph graph, Resource property, Object value) throws DatabaseException;\r
-\r
- // TODO methods?\r
-\r
- /*\r
- * Gets a named child of this variable. A child corresponds to a '/' in URI notation\r
- */\r
- Variable getChild(ReadGraph graph, String name) throws DatabaseException;\r
- Variable getPossibleChild(ReadGraph graph, String name) throws DatabaseException;\r
- /*\r
- * Gets a named property of this variable. A property corresponds to a '#' in URI notation\r
- */\r
- Variable getProperty(ReadGraph graph, String name) throws DatabaseException; \r
- Variable getProperty(ReadGraph graph, Resource property) throws DatabaseException; \r
- Variable getPossibleProperty(ReadGraph graph, String name) throws DatabaseException; \r
- Variable getPossibleProperty(ReadGraph graph, Resource property) throws DatabaseException; \r
-\r
- /*\r
- * Browses all children of this variable.\r
- * @deprecated replaced by {@link #getChildren(ReadGraph)}\r
- */\r
- @Deprecated\r
- Collection<Variable> browseChildren(ReadGraph graph) throws DatabaseException;\r
-\r
- /*\r
- * Gets all children of this variable.\r
- */\r
- Collection<Variable> getChildren(ReadGraph graph) throws DatabaseException;\r
-\r
- /*\r
- * Browses all available properties of this variable. An empty collection shall\r
- * be returned if there are no properties for this variable.\r
- * @deprecated replaced by {@link #getProperties(ReadGraph)}\r
- */\r
- @Deprecated\r
- Collection<Variable> browseProperties(ReadGraph graph) throws DatabaseException;\r
-\r
- /*\r
- * Gets all available properties of this variable. An empty collection shall\r
- * be returned if there are no properties for this variable.\r
- */\r
- Collection<Variable> getProperties(ReadGraph graph) throws DatabaseException;\r
- /*\r
- * Gets all properties of this variable such that {@link #getClassifications()}\r
- * contains classification. An empty collection shall\r
- * be returned if there are no properties for this variable.\r
- */\r
- Collection<Variable> getProperties(ReadGraph graph, String classification) throws DatabaseException;\r
- Collection<Variable> getProperties(ReadGraph graph, Resource classification) throws DatabaseException;\r
-\r
- /*\r
- * Browses a single variable using the given suffix path. The suffix can contain various '/' and '#'. \r
- */\r
- Variable browse(ReadGraph graph, String suffix) throws DatabaseException;\r
- Variable browsePossible(ReadGraph graph, String suffix) throws DatabaseException;\r
-\r
- /*\r
- * Browses a single variable using the given configuration resource. \r
- */\r
- Variable browse(ReadGraph graph, Resource config) throws DatabaseException;\r
- Variable browsePossible(ReadGraph graph, Resource config) throws DatabaseException;\r
-\r
- Variable resolve(ReadGraph graph, RVIPart part) throws DatabaseException;\r
- Variable resolvePossible(ReadGraph graph, RVIPart part) throws DatabaseException;\r
-\r
- /*\r
- * Gets the requested interface associated to this variable if available.\r
- * Examples: \r
- * -Resource\r
- * -Accessor\r
- * -Binding\r
- * \r
- */\r
- @Deprecated\r
- <T> T getInterface(ReadGraph graph, Class<T> clazz) throws DatabaseException;\r
-\r
- <T> T adapt(ReadGraph graph, Class<T> clazz) throws DatabaseException;\r
- <T> T adaptPossible(ReadGraph graph, Class<T> clazz) throws DatabaseException;\r
-\r
- /*\r
- * Gets the unique URI reference for this variable.\r
- */\r
- String getURI(ReadGraph graph) throws DatabaseException;\r
-\r
- /*\r
- * Standard properties\r
- */\r
-\r
- /**\r
- * @param graph\r
- * @return the unescaped name of this variable. Escaped names are used in URIs.\r
- * @throws DatabaseException if no name is available or other database error occurs\r
- */\r
- String getName(ReadGraph graph) throws DatabaseException;\r
-\r
- /**\r
- * Informative label of this variable.\r
- * \r
- * @param graph\r
- * @return\r
- * @throws DatabaseException if no label is available or other database error occurs\r
- */\r
- String getLabel(ReadGraph graph) throws DatabaseException;\r
- /**\r
- * @param graph\r
- * @return parent variable, <code>null</code> for root variable\r
- * @throws DatabaseException\r
- */\r
- Variable getParent(ReadGraph graph) throws DatabaseException;\r
-\r
- Datatype getDatatype(ReadGraph graph) throws DatabaseException;\r
- Datatype getPossibleDatatype(ReadGraph graph) throws DatabaseException;\r
- \r
- Role getRole(ReadGraph graph) throws DatabaseException;\r
- Role getPossibleRole(ReadGraph graph) throws DatabaseException;\r
-\r
- @Deprecated\r
- Variable getPredicate(ReadGraph graph) throws DatabaseException;\r
- @Deprecated\r
- Variable getPossiblePredicate(ReadGraph graph) throws DatabaseException;\r
-\r
- Resource getPredicateResource(ReadGraph graph) throws DatabaseException;\r
- Resource getPossiblePredicateResource(ReadGraph graph) throws DatabaseException;\r
-\r
- Resource getRepresents(ReadGraph graph) throws DatabaseException;\r
- Resource getPossibleRepresents(ReadGraph graph) throws DatabaseException;\r
-\r
- Resource getType(ReadGraph graph) throws DatabaseException;\r
- Resource getPossibleType(ReadGraph graph) throws DatabaseException;\r
- Resource getType(ReadGraph graph, Resource baseType) throws DatabaseException;\r
- Resource getPossibleType(ReadGraph graph, Resource baseType) throws DatabaseException;\r
-\r
- Set<String> getClassifications(ReadGraph graph) throws DatabaseException;\r
-\r
- RVI getRVI(ReadGraph graph) throws DatabaseException;\r
- RVI getPossibleRVI(ReadGraph graph) throws DatabaseException;\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 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.db.layer0.variable;
+
+import java.util.Collection;
+import java.util.Set;
+
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.binding.mutable.Variant;
+import org.simantics.databoard.type.Datatype;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.exception.NonWritableVariableException;
+import org.simantics.db.layer0.request.PropertyInfo;
+import org.simantics.db.layer0.variable.RVI.RVIPart;
+import org.simantics.db.layer0.variable.Variables.Role;
+
+/*
+ * Variable is a standard i/o data interface to a model in Simantics. The variable interface provides
+ *
+ * - Unified data addressing in string format (URI)
+ * - Flattening of reusable component hierarchies
+ * - Runtime values
+ * - Derived values
+ *
+ * The Variable interface spans a tree of variables such that each node can have children and properties.
+ * - children are denoted by the '/' separator
+ * - properties are denoted by the '#' separator
+ *
+ * There are three kinds of URIs
+ *
+ * Variable URI:
+ * A standard random access identifier to a variable.
+ * Examples:
+ * - http://www.asd.org/Projects/AprosModel1/BaseRealization/Diagram/PI_X#PI_MASS_FLOW
+ * - http://www.asd.org/Projects/AprosModel1/Experiment/UUID/Diagram/PI_X#PI_MASS_FLOW#Unit
+ * Realization URI:
+ * A random access identifier to a context under which a valuation of a model is presented.
+ * A realization URI is guaranteed to have a unique resource obtainable by ReadGraph.getResource()
+ * Examples:
+ * - http://www.asd.org/Projects/AprosModel1/BaseRealization
+ * - http://www.asd.org/Projects/AprosModel1/Experiment/UUID
+ * Relative Variable Identifier (RVI):
+ * A reference which can be used to obtain a variable when realization is given
+ * Examples:
+ * - /Diagram/PI_X#PI_MASS_FLOW
+ * - /Diagram/PI_X#PI_MASS_FLOW#Unit
+ *
+ * Use cases:
+ *
+ * 1. Given a configuration resource and context variable obtain variable
+ * Procedure: call Variable.browse(ReadGraph, Resource)
+ *
+ * 2. Given two variables obtain RVI of second based on first
+ * Procedure: call Variables.getRVI(Variable, Variable)
+ *
+ * 3. Given Realization URI obtain Variable
+ * Procedure: call ReadGraph.getResource and then adapt(Resource, Variable.class)
+ *
+ * 4. Given Realization URI and RVI, obtain Variable
+ * Procedure: obtain Variable from Realization URI, call Variable.browse(ReadGraph, String)
+ *
+ * 5. Given Variable URI, obtain Variable
+ * Procedure: call Variables.getVariable(ReadGraph, String)
+ *
+ * 6. Given Variable, obtain model
+ * Procedure: call Variables.getModel(ReadGraph, Variable)
+ *
+ * 7. Given Variable, obtain realization
+ * Procedure: call Variables.getRealization(ReadGraph, Variable)
+
+ * 8. Given Variable, obtain Variable in other realization
+ * Procedure: call Variables.switchRealization(ReadGraph, Variable, Resource)
+ *
+ */
+
+
+public interface Variable {
+
+ /*
+ * Convenience method for getting the value of a named property.
+ */
+ <T> T getPropertyValue(ReadGraph graph, String name) throws DatabaseException;
+ <T> T getPropertyValue(ReadGraph graph, Resource property) throws DatabaseException;
+ <T> T getPossiblePropertyValue(ReadGraph graph, String name) throws DatabaseException;
+ <T> T getPossiblePropertyValue(ReadGraph graph, Resource property) throws DatabaseException;
+ /*
+ * Convenience method for getting the value of a named property.
+ */
+ <T> T getPropertyValue(ReadGraph graph, String name, Binding binding) throws DatabaseException;
+ <T> T getPropertyValue(ReadGraph graph, Resource property, Binding binding) throws DatabaseException;
+ <T> T getPossiblePropertyValue(ReadGraph graph, String name, Binding binding) throws DatabaseException;
+ <T> T getPossiblePropertyValue(ReadGraph graph, Resource property, Binding binding) throws DatabaseException;
+ /*
+ * Gets the value of the property. Binding is default.
+ */
+ <T> T getValue(ReadGraph graph) throws DatabaseException;
+ <T> T getPossibleValue(ReadGraph graph) throws DatabaseException;
+ /*
+ * Gets the value of the property. Binding is explicitly given.
+ */
+ <T> T getValue(ReadGraph graph, Binding binding) throws DatabaseException;
+ <T> T getPossibleValue(ReadGraph graph, Binding binding) throws DatabaseException;
+ Variant getVariantValue(ReadGraph graph) throws DatabaseException;
+
+ /*
+ * If role is Property returns the corresponding PropertyInfo.
+ * @throws DatabaseException if role of this variable is not Property
+ */
+ PropertyInfo getPropertyInfo(ReadGraph graph) throws DatabaseException;
+
+ /**
+ * @return the index root resource or <code>null</code> if the index root
+ * cannot be found
+ * @throws DatabaseException in any other error conditions
+ */
+ Resource getIndexRoot(ReadGraph graph) throws DatabaseException;
+
+ /**
+ * Writes a value using the given binding.
+ *
+ * @throws NonWritableVariableException if the variable is not writable
+ * @throws DatabaseException in any other error conditions
+ */
+ void setValue(WriteGraph graph, Object value, Binding binding) throws DatabaseException;
+ /**
+ * Writes a value with default binding based on the value class.
+ *
+ * @throws NonWritableVariableException if the variable is not writable
+ * @throws DatabaseException in any other error conditions
+ */
+ void setValue(WriteGraph graph, Object value) throws DatabaseException;
+
+ /**
+ * Writes a value to the given property using the given binding.
+ *
+ * @throws NonWritableVariableException if the variable is not writable
+ * @throws DatabaseException in any other error conditions
+ */
+ void setPropertyValue(WriteGraph graph, String name, Object value, Binding binding) throws DatabaseException;
+ void setPropertyValue(WriteGraph graph, Resource property, Object value, Binding binding) throws DatabaseException;
+ /**
+ * Writes a value to the given property using the default binding based on
+ * the value class.
+ *
+ * @throws NonWritableVariableException if the variable is not writable
+ * @throws DatabaseException in any other error conditions
+ */
+ void setPropertyValue(WriteGraph graph, String name, Object value) throws DatabaseException;
+ void setPropertyValue(WriteGraph graph, Resource property, Object value) throws DatabaseException;
+
+ // TODO methods?
+
+ /*
+ * Gets a named child of this variable. A child corresponds to a '/' in URI notation
+ */
+ Variable getChild(ReadGraph graph, String name) throws DatabaseException;
+ Variable getPossibleChild(ReadGraph graph, String name) throws DatabaseException;
+ /*
+ * Gets a named property of this variable. A property corresponds to a '#' in URI notation
+ */
+ Variable getProperty(ReadGraph graph, String name) throws DatabaseException;
+ Variable getProperty(ReadGraph graph, Resource property) throws DatabaseException;
+ Variable getPossibleProperty(ReadGraph graph, String name) throws DatabaseException;
+ Variable getPossibleProperty(ReadGraph graph, Resource property) throws DatabaseException;
+
+ /*
+ * Browses all children of this variable.
+ * @deprecated replaced by {@link #getChildren(ReadGraph)}
+ */
+ @Deprecated
+ Collection<Variable> browseChildren(ReadGraph graph) throws DatabaseException;
+
+ /*
+ * Gets all children of this variable.
+ */
+ Collection<Variable> getChildren(ReadGraph graph) throws DatabaseException;
+
+ /*
+ * Browses all available properties of this variable. An empty collection shall
+ * be returned if there are no properties for this variable.
+ * @deprecated replaced by {@link #getProperties(ReadGraph)}
+ */
+ @Deprecated
+ Collection<Variable> browseProperties(ReadGraph graph) throws DatabaseException;
+
+ /*
+ * Gets all available properties of this variable. An empty collection shall
+ * be returned if there are no properties for this variable.
+ */
+ Collection<Variable> getProperties(ReadGraph graph) throws DatabaseException;
+ /*
+ * Gets all properties of this variable such that {@link #getClassifications()}
+ * contains classification. An empty collection shall
+ * be returned if there are no properties for this variable.
+ */
+ Collection<Variable> getProperties(ReadGraph graph, String classification) throws DatabaseException;
+ Collection<Variable> getProperties(ReadGraph graph, Resource classification) throws DatabaseException;
+
+ /*
+ * Browses a single variable using the given suffix path. The suffix can contain various '/' and '#'.
+ */
+ Variable browse(ReadGraph graph, String suffix) throws DatabaseException;
+ Variable browsePossible(ReadGraph graph, String suffix) throws DatabaseException;
+
+ /*
+ * Browses a single variable using the given configuration resource.
+ */
+ Variable browse(ReadGraph graph, Resource config) throws DatabaseException;
+ Variable browsePossible(ReadGraph graph, Resource config) throws DatabaseException;
+
+ Variable resolve(ReadGraph graph, RVIPart part) throws DatabaseException;
+ Variable resolvePossible(ReadGraph graph, RVIPart part) throws DatabaseException;
+
+ /*
+ * Gets the requested interface associated to this variable if available.
+ * Examples:
+ * -Resource
+ * -Accessor
+ * -Binding
+ *
+ */
+ @Deprecated
+ <T> T getInterface(ReadGraph graph, Class<T> clazz) throws DatabaseException;
+
+ <T> T adapt(ReadGraph graph, Class<T> clazz) throws DatabaseException;
+ <T> T adaptPossible(ReadGraph graph, Class<T> clazz) throws DatabaseException;
+
+ /*
+ * Gets the unique URI reference for this variable.
+ */
+ String getURI(ReadGraph graph) throws DatabaseException;
+
+ /*
+ * Standard properties
+ */
+
+ /**
+ * @param graph
+ * @return the unescaped name of this variable. Escaped names are used in URIs.
+ * @throws DatabaseException if no name is available or other database error occurs
+ */
+ String getName(ReadGraph graph) throws DatabaseException;
+
+ /**
+ * Informative label of this variable.
+ *
+ * @param graph
+ * @return
+ * @throws DatabaseException if no label is available or other database error occurs
+ */
+ String getLabel(ReadGraph graph) throws DatabaseException;
+ /**
+ * @param graph
+ * @return parent variable, <code>null</code> for root variable
+ * @throws DatabaseException
+ */
+ Variable getParent(ReadGraph graph) throws DatabaseException;
+
+ Datatype getDatatype(ReadGraph graph) throws DatabaseException;
+ Datatype getPossibleDatatype(ReadGraph graph) throws DatabaseException;
+
+ Role getRole(ReadGraph graph) throws DatabaseException;
+ Role getPossibleRole(ReadGraph graph) throws DatabaseException;
+
+ @Deprecated
+ Variable getPredicate(ReadGraph graph) throws DatabaseException;
+ @Deprecated
+ Variable getPossiblePredicate(ReadGraph graph) throws DatabaseException;
+
+ Resource getPredicateResource(ReadGraph graph) throws DatabaseException;
+ Resource getPossiblePredicateResource(ReadGraph graph) throws DatabaseException;
+
+ Resource getRepresents(ReadGraph graph) throws DatabaseException;
+ Resource getPossibleRepresents(ReadGraph graph) throws DatabaseException;
+
+ Resource getType(ReadGraph graph) throws DatabaseException;
+ Resource getPossibleType(ReadGraph graph) throws DatabaseException;
+ Resource getType(ReadGraph graph, Resource baseType) throws DatabaseException;
+ Resource getPossibleType(ReadGraph graph, Resource baseType) throws DatabaseException;
+
+ Set<String> getClassifications(ReadGraph graph) throws DatabaseException;
+
+ RVI getRVI(ReadGraph graph) throws DatabaseException;
+ RVI getPossibleRVI(ReadGraph graph) throws DatabaseException;
+
+}