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Eclipse JDT Release 3.3 |
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java.lang.Objectorg.eclipse.jdt.ui.StandardJavaElementContentProvider
public class StandardJavaElementContentProvider
A base content provider for Java elements. It provides access to the Java element hierarchy without listening to changes in the Java model. If updating the presentation on Java model change is required than clients have to subclass, listen to Java model changes and have to update the UI using corresponding methods provided by the JFace viewers or their own UI presentation.
The following Java element hierarchy is surfaced by this content provider:
Java model (IJavaModel
) Java project (IJavaProject
) package fragment root (IPackageFragmentRoot
) package fragment (IPackageFragment
) compilation unit (ICompilationUnit
) binary class file (IClassFile
)
Note that when the entire Java project is declared to be package fragment root, the corresponding package fragment root element that normally appears between the Java project and the package fragments is automatically filtered out.
Field Summary | |
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protected boolean |
fProvideMembers
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protected boolean |
fProvideWorkingCopy
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protected static java.lang.Object[] |
NO_CHILDREN
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Constructor Summary | |
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StandardJavaElementContentProvider()
Creates a new content provider. |
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StandardJavaElementContentProvider(boolean provideMembers)
Creates a new StandardJavaElementContentProvider . |
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StandardJavaElementContentProvider(boolean provideMembers,
boolean provideWorkingCopy)
Deprecated. Use StandardJavaElementContentProvider(boolean) instead.
Since 3.0 compilation unit children are always provided as working copies. The Java Model
does not support the 'original' mode anymore. |
Method Summary | |
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protected static java.lang.Object[] |
concatenate(java.lang.Object[] a1,
java.lang.Object[] a2)
Note: This method is for internal use only. |
void |
dispose()
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protected boolean |
exists(java.lang.Object element)
Note: This method is for internal use only. |
java.lang.Object[] |
getChildren(java.lang.Object element)
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java.lang.Object[] |
getElements(java.lang.Object parent)
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protected java.lang.Object[] |
getFolderContent(IFolder folder)
Evaluates all children of a given IFolder . |
protected java.lang.Object[] |
getJavaProjects(IJavaModel jm)
Note: This method is for internal use only. |
protected java.lang.Object[] |
getPackageContent(IPackageFragment fragment)
Evaluates all children of a given IPackageFragment . |
protected java.lang.Object[] |
getPackageFragmentRootContent(IPackageFragmentRoot root)
Evaluates all children of a given IPackageFragmentRoot . |
protected java.lang.Object[] |
getPackageFragmentRoots(IJavaProject project)
Evaluates all children of a given IJavaProject . |
java.lang.Object |
getParent(java.lang.Object element)
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boolean |
getProvideMembers()
Returns whether members are provided when asking for a compilation units or class file for its children. |
boolean |
getProvideWorkingCopy()
Deprecated. Since 3.0 compilation unit children are always provided as working copies. The Java model does not support the 'original' mode anymore. |
boolean |
hasChildren(java.lang.Object element)
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void |
inputChanged(Viewer viewer,
java.lang.Object oldInput,
java.lang.Object newInput)
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protected java.lang.Object |
internalGetParent(java.lang.Object element)
Note: This method is for internal use only. |
protected boolean |
isClassPathChange(IJavaElementDelta delta)
Note: This method is for internal use only. |
protected boolean |
isPackageFragmentEmpty(IJavaElement element)
Note: This method is for internal use only. |
protected boolean |
isProjectPackageFragmentRoot(IPackageFragmentRoot root)
Note: This method is for internal use only. |
boolean |
providesWorkingCopies()
Returns true if the content provider returns working
copy elements; otherwise false is returned. |
void |
setProvideMembers(boolean b)
Sets whether the content provider is supposed to return members when asking a compilation unit or class file for its children. |
void |
setProvideWorkingCopy(boolean b)
Deprecated. Since 3.0 compilation unit children are always provided from the working copy. The Java model offers a unified world and does not support the 'original' mode anymore. |
protected java.lang.Object |
skipProjectPackageFragmentRoot(IPackageFragmentRoot root)
Note: This method is for internal use only. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected static final java.lang.Object[] NO_CHILDREN
protected boolean fProvideMembers
protected boolean fProvideWorkingCopy
Constructor Detail |
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public StandardJavaElementContentProvider()
public StandardJavaElementContentProvider(boolean provideMembers, boolean provideWorkingCopy)
StandardJavaElementContentProvider(boolean)
instead.
Since 3.0 compilation unit children are always provided as working copies. The Java Model
does not support the 'original' mode anymore.
public StandardJavaElementContentProvider(boolean provideMembers)
StandardJavaElementContentProvider
.
provideMembers
- if true
members below compilation units
and class files are provided.Method Detail |
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public boolean getProvideMembers()
true
if the content provider provides members;
otherwise false
is returnedpublic void setProvideMembers(boolean b)
b
- if true
then members are provided.
If false
compilation units and class files are the
leaves provided by this content provider.public boolean getProvideWorkingCopy()
public void setProvideWorkingCopy(boolean b)
public boolean providesWorkingCopies()
IWorkingCopyProvider
true
if the content provider returns working
copy elements; otherwise false
is returned.
providesWorkingCopies
in interface IWorkingCopyProvider
public java.lang.Object[] getElements(java.lang.Object parent)
getElements
in interface IStructuredContentProvider
public void inputChanged(Viewer viewer, java.lang.Object oldInput, java.lang.Object newInput)
inputChanged
in interface IContentProvider
public void dispose()
dispose
in interface IContentProvider
public java.lang.Object[] getChildren(java.lang.Object element)
getChildren
in interface ITreeContentProvider
public boolean hasChildren(java.lang.Object element)
hasChildren
in interface ITreeContentProvider
public java.lang.Object getParent(java.lang.Object element)
getParent
in interface ITreeContentProvider
protected java.lang.Object[] getPackageFragmentRootContent(IPackageFragmentRoot root) throws JavaModelException
IPackageFragmentRoot
. Clients can override this method.
root
- The root to evaluate the children for.
JavaModelException
- if the package fragment root does not exist or if an
exception occurs while accessing its corresponding resourceprotected java.lang.Object[] getPackageFragmentRoots(IJavaProject project) throws JavaModelException
IJavaProject
. Clients can override this method.
project
- The Java project to evaluate the children for.
JavaModelException
- if the Java project does not exist or if an
exception occurs while accessing its corresponding resourceprotected java.lang.Object[] getJavaProjects(IJavaModel jm) throws JavaModelException
JavaModelException
protected java.lang.Object[] getPackageContent(IPackageFragment fragment) throws JavaModelException
IPackageFragment
. Clients can override this method.
fragment
- The fragment to evaluate the children for.
JavaModelException
- if the package fragment does not exist or if an
exception occurs while accessing its corresponding resourceprotected java.lang.Object[] getFolderContent(IFolder folder) throws CoreException
IFolder
. Clients can override this method.
folder
- The folder to evaluate the children for.
CoreException
- if the folder does not exist.protected boolean isClassPathChange(IJavaElementDelta delta)
protected java.lang.Object skipProjectPackageFragmentRoot(IPackageFragmentRoot root)
protected boolean isPackageFragmentEmpty(IJavaElement element) throws JavaModelException
JavaModelException
protected boolean isProjectPackageFragmentRoot(IPackageFragmentRoot root)
protected boolean exists(java.lang.Object element)
protected java.lang.Object internalGetParent(java.lang.Object element)
protected static java.lang.Object[] concatenate(java.lang.Object[] a1, java.lang.Object[] a2)
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Eclipse JDT Release 3.3 |
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