Added in hooks to plugin a database for the PDOM.

core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/IPDOMDatabaseProvider.java

@@ -0,0 +1,27 @@
+/*******************************************************************************
+ * Copyright (c) 2005 QNX Software Systems and others.
+ * 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:
+ * QNX - Initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.core.pdom;
+
+import java.sql.Connection;
+
+import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.core.runtime.QualifiedName;
+
+public interface IPDOMDatabaseProvider {
+
+	public static final QualifiedName dbNameKey
+		= new QualifiedName(CCorePlugin.PLUGIN_ID, "pdomDBName");
+
+	Connection getDatabase(String dbName, boolean create);
+	
+	void shutdownDatabase(String dbName);
+	
+}

core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOM.java

@@ -1,21 +1,30 @@
 package org.eclipse.cdt.core.pdom;
 
-import java.util.HashSet;
+import java.sql.Connection;
+import java.util.HashMap;
 import java.util.Iterator;
-import java.util.Set;
+import java.util.Map;
 
+import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.dom.ast.IASTName;
 import org.eclipse.cdt.core.dom.ast.IBinding;
-import org.eclipse.cdt.core.dom.ast.IScope;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExtension;
+import org.eclipse.core.runtime.IExtensionPoint;
+import org.eclipse.core.runtime.Platform;
 
 public class PDOM {
 
-	// To reduce storage requirements we have a single table that contains all
+	// The DOM hash map
-	// of the strings in the PDOM. To check for equality, all you need to do
+	private static Map pdomMap = new HashMap();
-	// is compare string handles.
-	private Set stringTable = new HashSet();
 
-	private IScope globalScope;
+	private Connection dbConn;
+	
+	private PDOM(Connection conn) {
+		dbConn = conn;
+	}
 	
 	/**
 	 * Look up the name from the DOM in the PDOM and return the PDOM
@@ -79,4 +88,47 @@ public class PDOM {
 		
 	}
 
+	/**
+	 * Return the PDOM for the given project
+	 * 
+	 * @param project
+	 * @return the PDOM for the project
+	 * @throws CoreException
+	 */
+	public static PDOM getPDOM(IProject project) throws CoreException {
+		// Get the name for the db
+		boolean create = false;
+		String dbName = project.getPersistentProperty(IPDOMDatabaseProvider.dbNameKey);
+		if (dbName == null) {
+			// New database
+			create = true;
+			// TODO - the name shouldn't be the project name in case the
+			// user changes it and creates a new one with the old name
+			dbName = project.getName();
+			project.setPersistentProperty(IPDOMDatabaseProvider.dbNameKey, dbName);
+		} else {
+			// See if we got one already
+			PDOM pdom = (PDOM)pdomMap.get(dbName);
+			if (pdom != null)
+				return pdom;
+		}
+		
+		// Find our database provider
+		IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(CCorePlugin.PLUGIN_ID, "PDOMDatabaseProvider"); //$NON-NLS-1$
+		IExtension[] extensions = extensionPoint.getExtensions();
+		
+		if (extensions.length == 0)
+			// No DB providers
+			return null;
+		
+		// For now pick the first one. In the future we may want to support more
+		IConfigurationElement[] elements = extensions[0].getConfigurationElements();
+		IPDOMDatabaseProvider dbProvider
+			= (IPDOMDatabaseProvider)elements[0].createExecutableExtension("class"); //$NON-NLS-1$
+		
+		// create the PDOM
+		PDOM pdom = new PDOM(dbProvider.getDatabase(dbName, create));
+		pdomMap.put(dbName, pdom);
+		return pdom;
+	}
 }

core/org.eclipse.cdt.core/pdom/org/eclipse/cdt/core/pdom/PDOMASTServiceProvider.java

@@ -0,0 +1,59 @@
+package org.eclipse.cdt.core.pdom;
+
+import org.eclipse.cdt.core.dom.IASTServiceProvider;
+import org.eclipse.cdt.core.dom.ICodeReaderFactory;
+import org.eclipse.cdt.core.dom.IParserConfiguration;
+import org.eclipse.cdt.core.dom.ast.ASTCompletionNode;
+import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IStorage;
+
+public class PDOMASTServiceProvider implements IASTServiceProvider {
+
+	public IASTTranslationUnit getTranslationUnit(IFile fileToParse)
+			throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public IASTTranslationUnit getTranslationUnit(IStorage fileToParse,
+			IProject project, ICodeReaderFactory fileCreator)
+			throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public IASTTranslationUnit getTranslationUnit(IStorage fileToParse,
+			IProject project) throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public IASTTranslationUnit getTranslationUnit(IFile fileToParse,
+			ICodeReaderFactory fileCreator) throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public IASTTranslationUnit getTranslationUnit(IFile fileToParse,
+			ICodeReaderFactory fileCreator, IParserConfiguration configuration)
+			throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public ASTCompletionNode getCompletionNode(IFile fileToParse, int offset,
+			ICodeReaderFactory fileCreator) throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	public ASTCompletionNode getCompletionNode(IStorage fileToParse,
+			IProject project, int offset, ICodeReaderFactory fileCreator)
+			throws UnsupportedDialectException {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}

core/org.eclipse.cdt.core/plugin.xml

@@ -63,6 +63,7 @@
    <extension-point id="PathEntryContainerInitializer" name="%PathEntryContainerInitializer" schema="schema/PathEntryContainerInitializer.exsd"/>
    <extension-point id="CodeFormatter" name="%CodeFormatter.name" schema="schema/CodeFormatter.exsd"/>
    <extension-point id="CIndexer" name="C/C++ Indexer" schema="schema/CIndexer.exsd"/>
+   <extension-point id="PDOMDatabaseProvider" name="%PDOMDatabaseProvider" schema="schema/PDOMDatabaseProvider.exsd"/>
 <!-- =================================================================================== -->
 <!-- Define the list of the Binary Parser provided by the CDT                            -->
 <!-- =================================================================================== -->

core/org.eclipse.cdt.core/schema/PDOMDatabaseProvider.exsd

@@ -0,0 +1,112 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!-- Schema file written by PDE -->
+<schema targetNamespace="org.eclipse.cdt.core">
+<annotation>
+      <appInfo>
+         <meta.schema plugin="org.eclipse.cdt.core" id="PDOMDatabaseProvider" name="%PDOMDatabaseProvider"/>
+      </appInfo>
+      <documentation>
+         This extension point provides the database to be used for the Persistent DOM.
+      </documentation>
+   </annotation>
+
+   <element name="extension">
+      <complexType>
+         <sequence>
+            <element ref="provider"/>
+         </sequence>
+         <attribute name="point" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="id" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="name" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appInfo>
+                  <meta.attribute translatable="true"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <element name="provider">
+      <complexType>
+         <attribute name="id" type="string" use="required">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+            </annotation>
+         </attribute>
+         <attribute name="class" type="string">
+            <annotation>
+               <documentation>
+                  
+               </documentation>
+               <appInfo>
+                  <meta.attribute kind="java" basedOn="org.eclipse.cdt.core.pdom.IPDOMDatabaseProvider"/>
+               </appInfo>
+            </annotation>
+         </attribute>
+      </complexType>
+   </element>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="since"/>
+      </appInfo>
+      <documentation>
+         [Enter the first release in which this extension point appears.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="examples"/>
+      </appInfo>
+      <documentation>
+         [Enter extension point usage example here.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="apiInfo"/>
+      </appInfo>
+      <documentation>
+         [Enter API information here.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="implementation"/>
+      </appInfo>
+      <documentation>
+         [Enter information about supplied implementation of this extension point.]
+      </documentation>
+   </annotation>
+
+   <annotation>
+      <appInfo>
+         <meta.section type="copyright"/>
+      </appInfo>
+      <documentation>
+         
+      </documentation>
+   </annotation>
+
+</schema>