X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fservice%2FVirtualGraphSupport.java;h=5f91e9d0ff7538e63b8a4fc4805e619761afd5c5;hb=e460fd6f0af60314e2ca28391ef7ff2043016d97;hp=a1512ec46c5b0d8af6a72e2317fbd2a9f7803efe;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git
diff --git a/bundles/org.simantics.db/src/org/simantics/db/service/VirtualGraphSupport.java b/bundles/org.simantics.db/src/org/simantics/db/service/VirtualGraphSupport.java
index a1512ec46..5f91e9d0f 100644
--- a/bundles/org.simantics.db/src/org/simantics/db/service/VirtualGraphSupport.java
+++ b/bundles/org.simantics.db/src/org/simantics/db/service/VirtualGraphSupport.java
@@ -1,116 +1,116 @@
-/*******************************************************************************
- * 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.service;
-
-import java.util.Collection;
-
-import org.simantics.db.ReadGraph;
-import org.simantics.db.Resource;
-import org.simantics.db.ServiceLocator;
-import org.simantics.db.Session;
-import org.simantics.db.Statement;
-import org.simantics.db.VirtualGraph;
-import org.simantics.db.VirtualGraph.Persistency;
-import org.simantics.db.WriteOnlyGraph;
-import org.simantics.db.exception.DatabaseException;
-
-
-/**
- * A {@link Session} service for working with virtual graphs. Virtual graphs
- * offer a way to augment the persistent graph database with
- * memory/workspace-persistent information. Use
- * {@link ServiceLocator#getService(Class)} to retrieve this support from a
- * {@link Session}.
- *
- * See Simantics
- * developer wiki for documentation.
- *
- * @author Antti Villberg
- */
-public interface VirtualGraphSupport {
-
- /**
- * Gets previously initialized or creates new memory-persistent
- * (session-transient) virtual graph by the specified identifier.
- *
- * The contents of memory-persistent graphs are lost
- * when the session finishes.
- *
- * @param identifier memory-persistent virtual graph identifier
- */
- VirtualGraph getMemoryPersistent(String identifier);
-
- /**
- * First tries to return a previously loaded workspace-persistent graph by
- * identifier. Then tries to restore the graph from disk by identifier.
- * Finally creates a new workspace-persistent graph.
- *
- * The graph is automatically persisted to disk.
- *
- * @param identifier workspace-persistent virtual graph identifier
- */
- VirtualGraph getWorkspacePersistent(String identifier);
-
- /**
- * Removes this graph from the set of active graphs. If the graph is
- * workspace persistent, the contents are deleted from disk.
- *
- * @return true
if the virtual graph was properly discarded
- */
- boolean discard(VirtualGraph graph);
-
- /**
- * Transfers the contents of this virtual graph into the persistent store
- *
- * @return true
if the virtual graph was properly integrated
- */
- boolean integrate(WriteOnlyGraph graph, VirtualGraph vg) throws DatabaseException;
-
- /**
- * Lists all active virtual graphs currently attached to the owner database
- * session.
- *
- * @return list of active virtual graphs
- */
- Collection listGraphs();
-
- /**
- * List all statements in the specified virtual graph.
- *
- * @param graph the virtual graph to get statements from
- * @return statements in the specified virtual graph
- */
- Collection listStatements(VirtualGraph graph);
-
- /**
- * List all resources that contain literal values in the specified virtual
- * graph.
- *
- * @param graph the virtual graph to get resources from
- * @return resources in the specified virtual graph containing literals
- */
- Collection listValues(VirtualGraph graph);
-
- VirtualGraph getGraph(ReadGraph graph, Resource subject, Resource predicate, Resource object) throws DatabaseException;
-
- VirtualGraph getGraph(ReadGraph graph, Resource subject, Resource predicate) throws DatabaseException;
-
- VirtualGraph getGraph(ReadGraph graph, Resource subject) throws DatabaseException;
-
- /**
- * A simple method for persisting the current state of all managed virtual
- * graphs where {@link VirtualGraph#getPersistency()} is
- * {@link Persistency#WORKSPACE}.
- */
- void saveAll() throws DatabaseException;
-
-}
+/*******************************************************************************
+ * 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.service;
+
+import java.util.Collection;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.ServiceLocator;
+import org.simantics.db.Session;
+import org.simantics.db.Statement;
+import org.simantics.db.VirtualGraph;
+import org.simantics.db.VirtualGraph.Persistency;
+import org.simantics.db.WriteOnlyGraph;
+import org.simantics.db.exception.DatabaseException;
+
+
+/**
+ * A {@link Session} service for working with virtual graphs. Virtual graphs
+ * offer a way to augment the persistent graph database with
+ * memory/workspace-persistent information. Use
+ * {@link ServiceLocator#getService(Class)} to retrieve this support from a
+ * {@link Session}.
+ *
+ * See Simantics
+ * developer wiki for documentation.
+ *
+ * @author Antti Villberg
+ */
+public interface VirtualGraphSupport {
+
+ /**
+ * Gets previously initialized or creates new memory-persistent
+ * (session-transient) virtual graph by the specified identifier.
+ *
+ * The contents of memory-persistent graphs are lost
+ * when the session finishes.
+ *
+ * @param identifier memory-persistent virtual graph identifier
+ */
+ VirtualGraph getMemoryPersistent(String identifier);
+
+ /**
+ * First tries to return a previously loaded workspace-persistent graph by
+ * identifier. Then tries to restore the graph from disk by identifier.
+ * Finally creates a new workspace-persistent graph.
+ *
+ * The graph is automatically persisted to disk.
+ *
+ * @param identifier workspace-persistent virtual graph identifier
+ */
+ VirtualGraph getWorkspacePersistent(String identifier);
+
+ /**
+ * Removes this graph from the set of active graphs. If the graph is
+ * workspace persistent, the contents are deleted from disk.
+ *
+ * @return true
if the virtual graph was properly discarded
+ */
+ boolean discard(VirtualGraph graph);
+
+ /**
+ * Transfers the contents of this virtual graph into the persistent store
+ *
+ * @return true
if the virtual graph was properly integrated
+ */
+ boolean integrate(WriteOnlyGraph graph, VirtualGraph vg) throws DatabaseException;
+
+ /**
+ * Lists all active virtual graphs currently attached to the owner database
+ * session.
+ *
+ * @return list of active virtual graphs
+ */
+ Collection listGraphs();
+
+ /**
+ * List all statements in the specified virtual graph.
+ *
+ * @param graph the virtual graph to get statements from
+ * @return statements in the specified virtual graph
+ */
+ Collection listStatements(VirtualGraph graph);
+
+ /**
+ * List all resources that contain literal values in the specified virtual
+ * graph.
+ *
+ * @param graph the virtual graph to get resources from
+ * @return resources in the specified virtual graph containing literals
+ */
+ Collection listValues(VirtualGraph graph);
+
+ VirtualGraph getGraph(ReadGraph graph, Resource subject, Resource predicate, Resource object) throws DatabaseException;
+
+ VirtualGraph getGraph(ReadGraph graph, Resource subject, Resource predicate) throws DatabaseException;
+
+ VirtualGraph getGraph(ReadGraph graph, Resource subject) throws DatabaseException;
+
+ /**
+ * A simple method for persisting the current state of all managed virtual
+ * graphs where {@link VirtualGraph#getPersistency()} is
+ * {@link Persistency#WORKSPACE}.
+ */
+ void saveAll() throws DatabaseException;
+
+}