null if this
- * element does not have a parent.
+ * This element's type - one of the constants defined in
+ * IJavaLanguageElementTypes.
+ */
+ // protected int fLEType = 0;
+ /**
+ * This element's parent, or null if this element does not
+ * have a parent.
*/
- protected IJavaElement fParent;
+ protected JavaElement parent;
/**
- * This element's name, or an empty String if this
- * element does not have a name.
+ * This element's name, or an empty String if this element
+ * does not have a name.
*/
- protected String fName;
+ protected String name;
protected static final Object NO_INFO = new Object();
-
- /**
- * Constructs a handle for a java element of the specified type, with
- * the given parent element and name.
- *
- * @param type - one of the constants defined in IJavaLanguageElement
- *
- * @exception IllegalArgumentException if the type is not one of the valid
- * Java element type constants
- *
- */
- protected JavaElement(int type, IJavaElement parent, String name) throws IllegalArgumentException {
- if (type < JAVA_MODEL || type > IMPORT_DECLARATION) {
- throw new IllegalArgumentException(Util.bind("element.invalidType")); //$NON-NLS-1$
- }
- fLEType= type;
- fParent= parent;
- fName= name;
+
+ /**
+ * Constructs a handle for a java element with the given parent element and
+ * name.
+ *
+ * @param parent
+ * The parent of java element
+ * @param name
+ * The name of java element
+ *
+ * @exception IllegalArgumentException
+ * if the type is not one of the valid Java element type
+ * constants
+ *
+ */
+ protected JavaElement(JavaElement parent, String name)
+ throws IllegalArgumentException {
+ this.parent = parent;
+ this.name = name;
}
+
/**
* @see IOpenable
*/
-// public void close() throws JavaModelException {
-// Object info = JavaModelManager.getJavaModelManager().peekAtInfo(this);
-// if (info != null) {
-// boolean wasVerbose = false;
-// try {
-// if (JavaModelManager.VERBOSE) {
-// System.out.println("CLOSING Element ("+ Thread.currentThread()+"): " + this.toStringWithAncestors()); //$NON-NLS-1$//$NON-NLS-2$
-// wasVerbose = true;
-// JavaModelManager.VERBOSE = false;
-// }
-// if (this instanceof IParent) {
-// IJavaElement[] children = ((JavaElementInfo) info).getChildren();
-// for (int i = 0, size = children.length; i < size; ++i) {
-// JavaElement child = (JavaElement) children[i];
-// child.close();
-// }
-// }
-// closing(info);
-// JavaModelManager.getJavaModelManager().removeInfo(this);
-// if (wasVerbose) {
-// System.out.println("-> Package cache size = " + JavaModelManager.getJavaModelManager().cache.pkgSize()); //$NON-NLS-1$
-// System.out.println("-> Openable cache filling ratio = " + JavaModelManager.getJavaModelManager().cache.openableFillingRatio() + "%"); //$NON-NLS-1$//$NON-NLS-2$
-// }
-// } finally {
-// JavaModelManager.VERBOSE = wasVerbose;
-// }
-// }
-// }
- /**
- * This element is being closed. Do any necessary cleanup.
- */
- protected void closing(Object info) throws JavaModelException {
- }
- /**
- * Returns true if this handle represents the same Java element
- * as the given handle. By default, two handles represent the same
- * element if they are identical or if they represent the same type
- * of element, have equal names, parents, and occurrence counts.
- *
- * If a subclass has other requirements for equality, this method - * must be overridden. - * + public void close() throws JavaModelException { + JavaModelManager.getJavaModelManager().removeInfoAndChildren(this); + } + + /** + * This element is being closed. Do any necessary cleanup. + */ + protected abstract void closing(Object info) throws JavaModelException; + + /* + * Returns a new element info for this element. + */ + protected abstract Object createElementInfo(); + + /** + * Returns true if this handle represents the same Java element as the given + * handle. By default, two handles represent the same element if they are + * identical or if they represent the same type of element, have equal + * names, parents, and occurrence counts. + * + *
+ * If a subclass has other requirements for equality, this method must be
+ * overridden.
+ *
* @see Object#equals
*/
public boolean equals(Object o) {
-
- if (this == o) return true;
-
+
+ if (this == o)
+ return true;
+
// Java model parent is null
- if (fParent == null) return super.equals(o);
-
+ if (this.parent == null)
+ return super.equals(o);
if (o instanceof JavaElement) {
+ // assume instanceof check is done in subclass
JavaElement other = (JavaElement) o;
- if (fLEType != other.fLEType) return false;
-
- return fName.equals(other.fName) &&
- fParent.equals(other.fParent) &&
- fOccurrenceCount == other.fOccurrenceCount;
+ return this.occurrenceCount == other.occurrenceCount
+ && this.name.equals(other.name)
+ && this.parent.equals(other.parent);
}
return false;
}
+
/**
- * Returns true if this JavaElement is equivalent to the given
- * IDOMNode.
+ * Returns true if this JavaElement is equivalent to the
+ * given IDOMNode.
*/
-// protected boolean equalsDOMNode(IDOMNode node) throws JavaModelException {
-// return false;
-// }
+ protected boolean equalsDOMNode(IDOMNode node) throws JavaModelException {
+ return false;
+ }
+
+ protected void escapeMementoName(StringBuffer buffer, String mementoName) {
+ for (int i = 0, length = mementoName.length(); i < length; i++) {
+ char character = mementoName.charAt(i);
+ switch (character) {
+ case JEM_ESCAPE:
+ case JEM_COUNT:
+ case JEM_JAVAPROJECT:
+ case JEM_PACKAGEFRAGMENTROOT:
+ case JEM_PACKAGEFRAGMENT:
+ case JEM_FIELD:
+ case JEM_METHOD:
+ case JEM_INITIALIZER:
+ case JEM_COMPILATIONUNIT:
+ // case JEM_CLASSFILE:
+ case JEM_TYPE:
+ case JEM_PACKAGEDECLARATION:
+ case JEM_IMPORTDECLARATION:
+ case JEM_LOCALVARIABLE:
+ buffer.append(JEM_ESCAPE);
+ }
+ buffer.append(character);
+ }
+ }
+
/**
* @see IJavaElement
*/
-// public boolean exists() {
-//
-// try {
-// getElementInfo();
-// return true;
-// } catch (JavaModelException e) {
-// }
-// return false;
-// }
-
- /**
- * Returns the IDOMNode that corresponds to this JavaElement
- * or null if there is no corresponding node.
- */
-// public IDOMNode findNode(IDOMCompilationUnit dom) {
-// int type = getElementType();
-// if (type == IJavaElement.COMPILATION_UNIT ||
-// type == IJavaElement.FIELD ||
-// type == IJavaElement.IMPORT_DECLARATION ||
-// type == IJavaElement.INITIALIZER ||
-// type == IJavaElement.METHOD ||
-// type == IJavaElement.PACKAGE_DECLARATION ||
-// type == IJavaElement.TYPE) {
-// ArrayList path = new ArrayList();
-// IJavaElement element = this;
-// while (element != null && element.getElementType() != IJavaElement.COMPILATION_UNIT) {
-// if (element.getElementType() != IJavaElement.IMPORT_CONTAINER) {
-// // the DOM does not have import containers, so skip them
-// path.add(0, element);
-// }
-// element = element.getParent();
-// }
-// if (path.size() == 0) {
-// try {
-// if (equalsDOMNode(dom)) {
-// return dom;
-// } else {
-// return null;
-// }
-// } catch(JavaModelException e) {
-// return null;
-// }
-// }
-// return ((JavaElement) path.get(0)).followPath(path, 0, dom.getFirstChild());
-// } else {
-// return null;
-// }
-// }
-// /**
-// */
-// protected IDOMNode followPath(ArrayList path, int position, IDOMNode node) {
-//
-// try {
-// if (equalsDOMNode(node)) {
-// if (position == (path.size() - 1)) {
-// return node;
-// } else {
-// if (node.getFirstChild() != null) {
-// position++;
-// return ((JavaElement)path.get(position)).followPath(path, position, node.getFirstChild());
-// } else {
-// return null;
-// }
-// }
-// } else if (node.getNextNode() != null) {
-// return followPath(path, position, node.getNextNode());
-// } else {
-// return null;
-// }
-// } catch (JavaModelException e) {
-// return null;
-// }
-//
-// }
+ public boolean exists() {
+
+ try {
+ getElementInfo();
+ return true;
+ } catch (JavaModelException e) {
+ }
+ return false;
+ }
+
+ /**
+ * Returns the IDOMNode that corresponds to this
+ * JavaElement or null if there is no
+ * corresponding node.
+ */
+ public IDOMNode findNode(IDOMCompilationUnit dom) {
+ int type = getElementType();
+ if (type == IJavaElement.COMPILATION_UNIT || type == IJavaElement.FIELD
+ || type == IJavaElement.IMPORT_DECLARATION
+ || type == IJavaElement.INITIALIZER
+ || type == IJavaElement.METHOD
+ || type == IJavaElement.PACKAGE_DECLARATION
+ || type == IJavaElement.TYPE) {
+ ArrayList path = new ArrayList();
+ IJavaElement element = this;
+ while (element != null
+ && element.getElementType() != IJavaElement.COMPILATION_UNIT) {
+ if (element.getElementType() != IJavaElement.IMPORT_CONTAINER) {
+ // the DOM does not have import containers, so skip them
+ path.add(0, element);
+ }
+ element = element.getParent();
+ }
+ if (path.size() == 0) {
+ try {
+ if (equalsDOMNode(dom)) {
+ return dom;
+ } else {
+ return null;
+ }
+ } catch (JavaModelException e) {
+ return null;
+ }
+ }
+ return ((JavaElement) path.get(0)).followPath(path, 0, dom
+ .getFirstChild());
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ */
+ protected IDOMNode followPath(ArrayList path, int position, IDOMNode node) {
+
+ try {
+ if (equalsDOMNode(node)) {
+ if (position == (path.size() - 1)) {
+ return node;
+ } else {
+ if (node.getFirstChild() != null) {
+ position++;
+ return ((JavaElement) path.get(position)).followPath(
+ path, position, node.getFirstChild());
+ } else {
+ return null;
+ }
+ }
+ } else if (node.getNextNode() != null) {
+ return followPath(path, position, node.getNextNode());
+ } else {
+ return null;
+ }
+ } catch (JavaModelException e) {
+ return null;
+ }
+
+ }
+
/**
* @see IJavaElement
*/
public IJavaElement getAncestor(int ancestorType) {
-
+
IJavaElement element = this;
while (element != null) {
- if (element.getElementType() == ancestorType) return element;
- element= element.getParent();
+ if (element.getElementType() == ancestorType)
+ return element;
+ element = element.getParent();
}
- return null;
+ return null;
}
+
/**
- * @see IParent
+ * Generates the element infos for this element, its ancestors (if they are
+ * not opened) and its children (if it is an Openable). Puts the newly
+ * created element info in the given map.
*/
-// public IJavaElement[] getChildren() throws JavaModelException {
-// return ((JavaElementInfo)getElementInfo()).getChildren();
-// }
+ protected abstract void generateInfos(Object info, HashMap newElements,
+ IProgressMonitor pm) throws JavaModelException;
+
+ /**
+ * @see IParent
+ */
+ public IJavaElement[] getChildren() throws JavaModelException {
+ return ((JavaElementInfo) getElementInfo()).getChildren();
+ }
+
/**
* Returns a collection of (immediate) children of this node of the
* specified type.
- *
- * @param type - one of constants defined by IJavaLanguageElementTypes
- */
-// public ArrayList getChildrenOfType(int type) throws JavaModelException {
-// IJavaElement[] children = getChildren();
-// int size = children.length;
-// ArrayList list = new ArrayList(size);
-// for (int i = 0; i < size; ++i) {
-// JavaElement elt = (JavaElement)children[i];
-// if (elt.getElementType() == type) {
-// list.add(elt);
-// }
-// }
-// return list;
-// }
+ *
+ * @param type -
+ * one of constants defined by IJavaLanguageElementTypes
+ */
+ public ArrayList getChildrenOfType(int type) throws JavaModelException {
+ IJavaElement[] children = getChildren();
+ int size = children.length;
+ ArrayList list = new ArrayList(size);
+ for (int i = 0; i < size; ++i) {
+ JavaElement elt = (JavaElement) children[i];
+ if (elt.getElementType() == type) {
+ list.add(elt);
+ }
+ }
+ return list;
+ }
+
+ /**
+ * @see IMember
+ */
+ // public IClassFile getClassFile() {
+ // return null;
+ // }
/**
* @see IMember
*/
-// public IClassFile getClassFile() {
-// return null;
-// }
-// /**
-// * @see IMember
-// */
-// public ICompilationUnit getCompilationUnit() {
-// return null;
-// }
- /**
- * Returns the info for this handle.
- * If this element is not already open, it and all of its parents are opened.
- * Does not return null.
- * NOTE: BinaryType infos are NJOT rooted under JavaElementInfo.
- * @exception JavaModelException if the element is not present or not accessible
- */
-// public Object getElementInfo() throws JavaModelException {
-//
-// // workaround to ensure parent project resolved classpath is available to avoid triggering initializers
-// // while the JavaModelManager lock is acquired (can cause deadlocks in clients)
-// IJavaProject project = getJavaProject();
-// if (project != null && !project.isOpen()) {
-// // TODO: need to revisit, since deadlock could still occur if perProjectInfo is removed concurrent before entering the lock
-// try {
-// project.getResolvedClasspath(true); // trigger all possible container/variable initialization outside the model lock
-// } catch (JavaModelException e) {
-// // project is not accessible or is not a java project
-// }
-// }
-//
-// // element info creation is done inside a lock on the JavaModelManager
-// JavaModelManager manager;
-// synchronized(manager = JavaModelManager.getJavaModelManager()){
-// Object info = manager.getInfo(this);
-// if (info == null) {
-// openHierarchy();
-// info= manager.getInfo(this);
-// if (info == null) {
-// throw newNotPresentException();
-// }
-// }
-// return info;
-// }
-// }
+ public ICompilationUnit getCompilationUnit() {
+ return null;
+ }
+
+ /**
+ * Returns the info for this handle. If this element is not already open, it
+ * and all of its parents are opened. Does not return null. NOTE: BinaryType
+ * infos are NOT rooted under JavaElementInfo.
+ *
+ * @exception JavaModelException
+ * if the element is not present or not accessible
+ */
+ public Object getElementInfo() throws JavaModelException {
+ return getElementInfo(null);
+ }
+
+ /**
+ * Returns the info for this handle. If this element is not already open, it
+ * and all of its parents are opened. Does not return null. NOTE: BinaryType
+ * infos are NOT rooted under JavaElementInfo.
+ *
+ * @exception JavaModelException
+ * if the element is not present or not accessible
+ */
+ public Object getElementInfo(IProgressMonitor monitor)
+ throws JavaModelException {
+
+ JavaModelManager manager = JavaModelManager.getJavaModelManager();
+ Object info = manager.getInfo(this);
+ if (info != null)
+ return info;
+ return openWhenClosed(createElementInfo(), monitor);
+ }
+
/**
* @see IAdaptable
*/
public String getElementName() {
- return fName;
+ return name;
}
- /**
- * @see IJavaElement
+
+ /*
+ * Creates a Java element handle from the given memento. The given token is
+ * the current delimiter indicating the type of the next token(s). The given
+ * working copy owner is used only for compilation unit handles.
*/
- public int getElementType() {
- return fLEType;
+ public abstract IJavaElement getHandleFromMemento(String token,
+ MementoTokenizer memento, WorkingCopyOwner owner);
+
+ /*
+ * Creates a Java element handle from the given memento. The given working
+ * copy owner is used only for compilation unit handles.
+ */
+ public IJavaElement getHandleFromMemento(MementoTokenizer memento,
+ WorkingCopyOwner owner) {
+ if (!memento.hasMoreTokens())
+ return this;
+ String token = memento.nextToken();
+ return getHandleFromMemento(token, memento, owner);
}
+
+ /*
+ * Update the occurence count of the receiver and creates a Java element
+ * handle from the given memento. The given working copy owner is used only
+ * for compilation unit handles.
+ */
+ public IJavaElement getHandleUpdatingCountFromMemento(
+ MementoTokenizer memento, WorkingCopyOwner owner) {
+ this.occurrenceCount = Integer.parseInt(memento.nextToken());
+ if (!memento.hasMoreTokens())
+ return this;
+ String token = memento.nextToken();
+ return getHandleFromMemento(token, memento, owner);
+ }
+
/**
* @see IJavaElement
*/
public String getHandleIdentifier() {
return getHandleMemento();
}
+
/**
* @see JavaElement#getHandleMemento()
*/
- public String getHandleMemento(){
- StringBuffer buff= new StringBuffer(((JavaElement)getParent()).getHandleMemento());
+ public String getHandleMemento() {
+ StringBuffer buff = new StringBuffer(((JavaElement) getParent())
+ .getHandleMemento());
buff.append(getHandleMementoDelimiter());
- buff.append(getElementName());
+ escapeMementoName(buff, getElementName());
+ if (this.occurrenceCount > 1) {
+ buff.append(JEM_COUNT);
+ buff.append(this.occurrenceCount);
+ }
return buff.toString();
}
+
+ /**
+ * Returns the char that marks the start of this handles
+ * contribution to a memento.
+ */
+
/**
* Returns the char that marks the start of this handles
* contribution to a memento.
*/
protected abstract char getHandleMementoDelimiter();
+
/**
* @see IJavaElement
*/
public IJavaModel getJavaModel() {
IJavaElement current = this;
do {
- if (current instanceof IJavaModel) return (IJavaModel) current;
+ if (current instanceof IJavaModel)
+ return (IJavaModel) current;
} while ((current = current.getParent()) != null);
return null;
}
-//
-// /**
-// * @see IJavaElement
-// */
-// public IJavaProject getJavaProject() {
-// IJavaElement current = this;
-// do {
-// if (current instanceof IJavaProject) return (IJavaProject) current;
-// } while ((current = current.getParent()) != null);
-// return null;
-// }
+
+ /**
+ * @see IJavaElement
+ */
+ public IJavaProject getJavaProject() {
+ IJavaElement current = this;
+ do {
+ if (current instanceof IJavaProject)
+ return (IJavaProject) current;
+ } while ((current = current.getParent()) != null);
+ return null;
+ }
+
/**
* Returns the occurrence count of the handle.
*/
protected int getOccurrenceCount() {
- return fOccurrenceCount;
+ return occurrenceCount;
}
+
/*
* @see IJavaElement
*/
public IOpenable getOpenable() {
- return this.getOpenableParent();
+ return this.getOpenableParent();
}
+
/**
- * Return the first instance of IOpenable in the parent
- * hierarchy of this element.
- *
- *
Subclasses that are not IOpenable's must override this method. + * Return the first instance of IOpenable in the parent hierarchy of this + * element. + * + *
+ * Subclasses that are not IOpenable's must override this method.
*/
public IOpenable getOpenableParent() {
-
- return (IOpenable)fParent;
+
+ return (IOpenable) parent;
}
+
/**
* @see IJavaElement
*/
public IJavaElement getParent() {
- return fParent;
- }
-
- /**
- * Returns the element that is located at the given source position
- * in this element. This is a helper method for ICompilationUnit#getElementAt,
- * and only works on compilation units and types. The position given is
- * known to be within this element's source range already, and if no finer
- * grained element is found at the position, this element is returned.
- */
-// protected IJavaElement getSourceElementAt(int position) throws JavaModelException {
-// if (this instanceof ISourceReference) {
-// IJavaElement[] children = getChildren();
-// int i;
-// for (i = 0; i < children.length; i++) {
-// IJavaElement aChild = children[i];
-// if (aChild instanceof SourceRefElement) {
-// SourceRefElement child = (SourceRefElement) children[i];
-// ISourceRange range = child.getSourceRange();
-// if (position < range.getOffset() + range.getLength() && position >= range.getOffset()) {
-// if (child instanceof IParent) {
-// return child.getSourceElementAt(position);
-// } else {
-// return child;
-// }
-// }
-// }
-// }
-// } else {
-// // should not happen
-// Assert.isTrue(false);
-// }
-// return this;
-// }
- /**
- * Returns the SourceMapper facility for this element, or
- * null if this element does not have a
- * SourceMapper.
- */
-// public SourceMapper getSourceMapper() {
-// return ((JavaElement)getParent()).getSourceMapper();
-// }
-
- /**
- * Returns the hash code for this Java element. By default,
- * the hash code for an element is a combination of its name
- * and parent's hash code. Elements with other requirements must
- * override this method.
+ return parent;
+ }
+
+ /*
+ * @see IJavaElement#getPrimaryElement()
+ */
+ public IJavaElement getPrimaryElement() {
+ return getPrimaryElement(true);
+ }
+
+ /*
+ * Returns the primary element. If checkOwner, and the cu owner is primary,
+ * return this element.
+ */
+ public IJavaElement getPrimaryElement(boolean checkOwner) {
+ return this;
+ }
+
+ /**
+ * Returns the element that is located at the given source position in this
+ * element. This is a helper method for
+ * ICompilationUnit#getElementAt, and only works on
+ * compilation units and types. The position given is known to be within
+ * this element's source range already, and if no finer grained element is
+ * found at the position, this element is returned.
+ */
+ protected IJavaElement getSourceElementAt(int position)
+ throws JavaModelException {
+ if (this instanceof ISourceReference) {
+ IJavaElement[] children = getChildren();
+ int i;
+ for (i = 0; i < children.length; i++) {
+ IJavaElement aChild = children[i];
+
+ if (aChild instanceof SourceRefElement) {
+ SourceRefElement child = (SourceRefElement) children[i];
+ ISourceRange range = child.getSourceRange();
+ // if (child.name.equals("stopObject")||range==null ||
+ // range.getOffset()<=0) {
+ // System.out.println(child.name);
+ // }
+ if (position < range.getOffset() + range.getLength()
+ && position >= range.getOffset()) {
+ if (child instanceof IParent) {
+ return child.getSourceElementAt(position);
+ } else {
+ return child;
+ }
+ }
+ }
+ }
+ } else {
+ // should not happen
+ Assert.isTrue(false);
+ }
+ return this;
+ }
+
+ /**
+ * Returns the SourceMapper facility for this element, or null
+ * if this element does not have a SourceMapper.
+ */
+ // public SourceMapper getSourceMapper() {
+ // return ((JavaElement)getParent()).getSourceMapper();
+ // }
+ /*
+ * (non-Javadoc)
+ *
+ * @see net.sourceforge.phpdt.core.IJavaElement#getSchedulingRule()
+ */
+ public ISchedulingRule getSchedulingRule() {
+ IResource resource = getResource();
+ if (resource == null) {
+ class NoResourceSchedulingRule implements ISchedulingRule {
+ public IPath path;
+
+ public NoResourceSchedulingRule(IPath path) {
+ this.path = path;
+ }
+
+ public boolean contains(ISchedulingRule rule) {
+ if (rule instanceof NoResourceSchedulingRule) {
+ return this.path
+ .isPrefixOf(((NoResourceSchedulingRule) rule).path);
+ } else {
+ return false;
+ }
+ }
+
+ public boolean isConflicting(ISchedulingRule rule) {
+ if (rule instanceof NoResourceSchedulingRule) {
+ IPath otherPath = ((NoResourceSchedulingRule) rule).path;
+ return this.path.isPrefixOf(otherPath)
+ || otherPath.isPrefixOf(this.path);
+ } else {
+ return false;
+ }
+ }
+ }
+ return new NoResourceSchedulingRule(getPath());
+ } else {
+ return resource;
+ }
+ }
+
+ /**
+ * @see IParent
+ */
+ public boolean hasChildren() throws JavaModelException {
+ // if I am not open, return true to avoid opening (case of a Java
+ // project, a compilation unit or a class file).
+ // also see https://bugs.eclipse.org/bugs/show_bug.cgi?id=52474
+ Object elementInfo = JavaModelManager.getJavaModelManager().getInfo(
+ this);
+ if (elementInfo instanceof JavaElementInfo) {
+ return ((JavaElementInfo) elementInfo).getChildren().length > 0;
+ } else {
+ return true;
+ }
+ }
+
+ /**
+ * Returns the hash code for this Java element. By default, the hash code
+ * for an element is a combination of its name and parent's hash code.
+ * Elements with other requirements must override this method.
*/
public int hashCode() {
- if (fParent == null) return super.hashCode();
- return Util.combineHashCodes(fName.hashCode(), fParent.hashCode());
+ if (this.parent == null)
+ return super.hashCode();
+ return Util.combineHashCodes(this.name.hashCode(), this.parent
+ .hashCode());
}
+
/**
* Returns true if this element is an ancestor of the given element,
* otherwise false.
*/
- protected boolean isAncestorOf(IJavaElement e) {
- IJavaElement parent= e.getParent();
- while (parent != null && !parent.equals(this)) {
- parent= parent.getParent();
+ public boolean isAncestorOf(IJavaElement e) {
+ IJavaElement parentElement = e.getParent();
+ while (parentElement != null && !parentElement.equals(this)) {
+ parentElement = parentElement.getParent();
}
- return parent != null;
+ return parentElement != null;
}
-
+
/**
* @see IJavaElement
*/
public boolean isReadOnly() {
return false;
}
+
/**
* @see IJavaElement
*/
-// public boolean isStructureKnown() throws JavaModelException {
-// return ((JavaElementInfo)getElementInfo()).isStructureKnown();
-// }
-// /**
-// * Creates and returns and not present exception for this element.
-// */
-// protected JavaModelException newNotPresentException() {
-// return new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, this));
-// }
-// /**
-// * Opens this element and all parents that are not already open.
-// *
-// * @exception JavaModelException this element is not present or accessible
-// */
-// protected void openHierarchy() throws JavaModelException {
-// if (this instanceof IOpenable) {
-// ((Openable) this).openWhenClosed(null);
-// } else {
-// Openable openableParent = (Openable)getOpenableParent();
-// if (openableParent != null) {
-// JavaElementInfo openableParentInfo = (JavaElementInfo) JavaModelManager.getJavaModelManager().getInfo((IJavaElement) openableParent);
-// if (openableParentInfo == null) {
-// openableParent.openWhenClosed(null);
-// } else {
-// throw newNotPresentException();
-// }
-// }
-// }
-// }
- /**
- * This element has just been opened. Do any necessary setup.
+ public boolean isStructureKnown() throws JavaModelException {
+ return ((JavaElementInfo) getElementInfo()).isStructureKnown();
+ }
+
+ /**
+ * Creates and returns and not present exception for this element.
+ */
+ protected JavaModelException newNotPresentException() {
+ return new JavaModelException(new JavaModelStatus(
+ IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, this));
+ }
+
+ /**
+ * Opens this element and all parents that are not already open.
+ *
+ * @exception JavaModelException
+ * this element is not present or accessible
+ */
+ // protected void openHierarchy() throws JavaModelException {
+ // if (this instanceof IOpenable) {
+ // ((Openable) this).openWhenClosed(null);
+ // } else {
+ // Openable openableParent = (Openable)getOpenableParent();
+ // if (openableParent != null) {
+ // JavaElementInfo openableParentInfo = (JavaElementInfo)
+ // JavaModelManager.getJavaModelManager().getInfo((IJavaElement)
+ // openableParent);
+ // if (openableParentInfo == null) {
+ // openableParent.openWhenClosed(null);
+ // } else {
+ // throw newNotPresentException();
+ // }
+ // }
+ // }
+ // }
+ /**
+ * This element has just been opened. Do any necessary setup.
*/
protected void opening(Object info) {
}
+
+ /*
+ * Opens an Openable that is known to be closed (no check for
+ * isOpen() ). Returns the created element info.
+ */
+ protected Object openWhenClosed(Object info, IProgressMonitor monitor)
+ throws JavaModelException {
+ JavaModelManager manager = JavaModelManager.getJavaModelManager();
+ boolean hadTemporaryCache = manager.hasTemporaryCache();
+ try {
+ HashMap newElements = manager.getTemporaryCache();
+ generateInfos(info, newElements, monitor);
+ if (info == null) {
+ info = newElements.get(this);
+ }
+ if (info == null) { // a source ref element could not be opened
+ // close any buffer that was opened for the openable parent
+ Iterator iterator = newElements.keySet().iterator();
+ while (iterator.hasNext()) {
+ IJavaElement element = (IJavaElement) iterator.next();
+ if (element instanceof Openable) {
+ ((Openable) element).closeBuffer();
+ }
+ }
+ throw newNotPresentException();
+ }
+ if (!hadTemporaryCache) {
+ manager.putInfos(this, newElements);
+ }
+ } finally {
+ if (!hadTemporaryCache) {
+ manager.resetTemporaryCache();
+ }
+ }
+ return info;
+ }
+
/**
*/
public String readableName() {
return this.getElementName();
}
+
/**
- * Removes all cached info from the Java Model, including all children,
- * but does not close this element.
- */
-// protected void removeInfo() {
-// Object info = JavaModelManager.getJavaModelManager().peekAtInfo(this);
-// if (info != null) {
-// if (this instanceof IParent) {
-// IJavaElement[] children = ((JavaElementInfo)info).getChildren();
-// for (int i = 0, size = children.length; i < size; ++i) {
-// JavaElement child = (JavaElement) children[i];
-// child.removeInfo();
-// }
-// }
-// JavaModelManager.getJavaModelManager().removeInfo(this);
-// }
-// }
-// /**
-// * Returns a copy of this element rooted at the given project.
-// */
-// public abstract IJavaElement rootedAt(IJavaProject project);
-// /**
-// * Runs a Java Model Operation
-// */
-// public static void runOperation(JavaModelOperation operation, IProgressMonitor monitor) throws JavaModelException {
-// try {
-// if (operation.isReadOnly() || ResourcesPlugin.getWorkspace().isTreeLocked()) {
-// operation.run(monitor);
-// } else {
-// // use IWorkspace.run(...) to ensure that a build will be done in autobuild mode
-// ResourcesPlugin.getWorkspace().run(operation, monitor);
-// }
-// } catch (CoreException ce) {
-// if (ce instanceof JavaModelException) {
-// throw (JavaModelException)ce;
-// } else {
-// if (ce.getStatus().getCode() == IResourceStatus.OPERATION_FAILED) {
-// Throwable e= ce.getStatus().getException();
-// if (e instanceof JavaModelException) {
-// throw (JavaModelException) e;
-// }
-// }
-// throw new JavaModelException(ce);
-// }
-// }
-// }
+ * Removes all cached info from the Java Model, including all children, but
+ * does not close this element.
+ */
+ // protected void removeInfo() {
+ // Object info = JavaModelManager.getJavaModelManager().peekAtInfo(this);
+ // if (info != null) {
+ // if (this instanceof IParent) {
+ // IJavaElement[] children = ((JavaElementInfo)info).getChildren();
+ // for (int i = 0, size = children.length; i < size; ++i) {
+ // JavaElement child = (JavaElement) children[i];
+ // child.removeInfo();
+ // }
+ // }
+ // JavaModelManager.getJavaModelManager().removeInfo(this);
+ // }
+ // }
+ // /**
+ // * Returns a copy of this element rooted at the given project.
+ // */
+ // public abstract IJavaElement rootedAt(IJavaProject project);
+ /**
+ * Runs a Java Model Operation
+ */
+ public static void runOperation(JavaModelOperation operation,
+ IProgressMonitor monitor) throws JavaModelException {
+ try {
+ if (operation.isReadOnly()
+ || ResourcesPlugin.getWorkspace().isTreeLocked()) {
+ operation.run(monitor);
+ } else {
+ // use IWorkspace.run(...) to ensure that a build will be done
+ // in autobuild mode
+ ResourcesPlugin.getWorkspace().run(operation, monitor);
+ }
+ } catch (CoreException ce) {
+ if (ce instanceof JavaModelException) {
+ throw (JavaModelException) ce;
+ } else {
+ if (ce.getStatus().getCode() == IResourceStatus.OPERATION_FAILED) {
+ Throwable e = ce.getStatus().getException();
+ if (e instanceof JavaModelException) {
+ throw (JavaModelException) e;
+ }
+ }
+ throw new JavaModelException(ce);
+ }
+ }
+ }
+
/**
* Sets the occurrence count of the handle.
*/
protected void setOccurrenceCount(int count) {
- fOccurrenceCount = count;
+ occurrenceCount = count;
}
+
protected String tabString(int tab) {
StringBuffer buffer = new StringBuffer();
for (int i = tab; i > 0; i--)
buffer.append(" "); //$NON-NLS-1$
return buffer.toString();
}
+
/**
* Debugging purposes
*/
@@ -575,27 +818,41 @@ public abstract class JavaElement extends PlatformObject implements IJavaElement
this.toStringInfo(0, buffer, NO_INFO);
return buffer.toString();
}
+
/**
- * Debugging purposes
+ * Debugging purposes
*/
public String toString() {
StringBuffer buffer = new StringBuffer();
toString(0, buffer);
return buffer.toString();
}
+
/**
- * Debugging purposes
+ * Debugging purposes
+ */
+ protected void toStringName(StringBuffer buffer) {
+ buffer.append(getElementName());
+ if (this.occurrenceCount > 1) {
+ buffer.append("#"); //$NON-NLS-1$
+ buffer.append(this.occurrenceCount);
+ }
+ }
+
+ /**
+ * Debugging purposes
*/
protected void toString(int tab, StringBuffer buffer) {
- // Object info = this.toStringInfo(tab, buffer);
+ // Object info = this.toStringInfo(tab, buffer);
Object info = null;
if (tab == 0) {
this.toStringAncestors(buffer);
}
this.toStringChildren(tab, buffer, info);
}
+
/**
- * Debugging purposes
+ * Debugging purposes
*/
public String toStringWithAncestors() {
StringBuffer buffer = new StringBuffer();
@@ -603,11 +860,12 @@ public abstract class JavaElement extends PlatformObject implements IJavaElement
this.toStringAncestors(buffer);
return buffer.toString();
}
+
/**
- * Debugging purposes
+ * Debugging purposes
*/
protected void toStringAncestors(StringBuffer buffer) {
- JavaElement parent = (JavaElement)this.getParent();
+ JavaElement parent = (JavaElement) this.getParent();
if (parent != null && parent.getParent() != null) {
buffer.append(" [in "); //$NON-NLS-1$
parent.toStringInfo(0, buffer, NO_INFO);
@@ -615,27 +873,30 @@ public abstract class JavaElement extends PlatformObject implements IJavaElement
buffer.append("]"); //$NON-NLS-1$
}
}
+
/**
- * Debugging purposes
+ * Debugging purposes
*/
protected void toStringChildren(int tab, StringBuffer buffer, Object info) {
- if (info == null || !(info instanceof JavaElementInfo)) return;
- IJavaElement[] children = ((JavaElementInfo)info).getChildren();
+ if (info == null || !(info instanceof JavaElementInfo))
+ return;
+ IJavaElement[] children = ((JavaElementInfo) info).getChildren();
for (int i = 0; i < children.length; i++) {
buffer.append("\n"); //$NON-NLS-1$
- ((JavaElement)children[i]).toString(tab + 1, buffer);
+ ((JavaElement) children[i]).toString(tab + 1, buffer);
}
}
+
/**
- * Debugging purposes
+ * Debugging purposes
*/
-// public Object toStringInfo(int tab, StringBuffer buffer) {
-// Object info = JavaModelManager.getJavaModelManager().peekAtInfo(this);
-// this.toStringInfo(tab, buffer, info);
-// return info;
-// }
+ // public Object toStringInfo(int tab, StringBuffer buffer) {
+ // Object info = JavaModelManager.getJavaModelManager().peekAtInfo(this);
+ // this.toStringInfo(tab, buffer, info);
+ // return info;
+ // }
/**
- * Debugging purposes
+ * Debugging purposes
*/
protected void toStringInfo(int tab, StringBuffer buffer, Object info) {
buffer.append(this.tabString(tab));
@@ -644,4 +905,4 @@ public abstract class JavaElement extends PlatformObject implements IJavaElement
buffer.append(" (not open)"); //$NON-NLS-1$
}
}
-}
+}
\ No newline at end of file