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Code Issues Wiki Activity

[225193] Simplified AbstractVMContext constructor.

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This commit is contained in:
Pawel Piech 2008-04-01 20:04:30 +00:00
parent 4fe0578953
commit 7fe354ae79
7 changed files with 44 additions and 41 deletions
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4
plugins/org.eclipse.dd.dsf.debug.ui/src/org/eclipse/dd/dsf/debug/internal/provisional/ui/viewmodel/expression/ExpressionManagerVMNode.java
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@ -73,7 +73,7 @@ public class ExpressionManagerVMNode extends AbstractVMNode
final private IExpression fExpression;
public InvalidExpressionVMContext(ExpressionManagerVMNode node, IExpression expression) {
super(node.getVMProvider().getVMAdapter(), node);
super(node);
fExpression = expression;
}
@ -108,7 +108,7 @@ public class ExpressionManagerVMNode extends AbstractVMNode
*/
class NewExpressionVMC extends AbstractVMContext {
public NewExpressionVMC() {
super(getVMProvider().getVMAdapter(), ExpressionManagerVMNode.this);
super(ExpressionManagerVMNode.this);
}
@Override

2
plugins/org.eclipse.dd.dsf.debug.ui/src/org/eclipse/dd/dsf/debug/internal/provisional/ui/viewmodel/launch/StandardProcessVMNode.java
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@ -49,7 +49,7 @@ public class StandardProcessVMNode extends AbstractVMNode {
private final IProcess fProcess;
VMC(IProcess process) {
super(getVMProvider().getVMAdapter(), StandardProcessVMNode.this);
super(StandardProcessVMNode.this);
fProcess = process;
}

55
plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/AbstractVMContext.java
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@ -1,50 +1,51 @@
package org.eclipse.dd.dsf.ui.viewmodel;
import org.eclipse.dd.dsf.ui.viewmodel.properties.IElementPropertiesProvider;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IColumnPresentationFactory;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementContentProvider;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IElementLabelProvider;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelProxyFactory;
import org.eclipse.core.runtime.Platform;
/**
* Implementation of basic view model context interface. The main
* purpose of the VMC wrapper is to re-direct adapter queries to the IVMAdapter
* and the layout node that the given context was created by.
* <p/>
* Implementation of basic view model context interface.
* <p> The main purpose of the VMC wrapper is to re-direct adapter
* queries. The redirecting of adapter queries follows this order:
* <ol>
* <li>If context implements the adapter itself, it is returned.</li>
* <li>If the VM Adapter implements the adapter, the VM Adapter is returned.</li>
* <li>If the VM Provider implements the adapter, the VM Provider is returned.</li>
* <li>If the VM Node implements the adapter, the VM Node is returned.</li>
* </ol>
* </p>
* <p>
* Note: Deriving classes must override the Object.equals/hashCode methods.
* This is because the view model context objects are just wrappers that are
* created by the view model on demand, so the equals methods must use the
* object being wrapped to perform a meaningful comparison.
*/
@SuppressWarnings("restriction")
abstract public class AbstractVMContext implements IVMContext {
protected final IVMAdapter fVMAdapter;
protected final IVMNode fNode;
public AbstractVMContext(IVMAdapter adapter, IVMNode node) {
fVMAdapter = adapter;
public AbstractVMContext(IVMNode node) {
fNode = node;
}
public IVMNode getVMNode() { return fNode; }
/**
* IAdapter implementation returns the {@link IVMAdapter} instance for
* the interfaces that are actually implemented by the VM Adapter.
* These should at least include {@link IElementContentProvider},
* {@link IModelProxyFactory}, and {@link IColumnPresentationFactory}.
* It also returns the {@link IVMNode} instance for adapters implemented
* by the context's node. The interfaces typically implemented by the
* node include {@link IElementLabelProvider} and {@link IElementPropertiesProvider}.
*/
@SuppressWarnings("unchecked")
public Object getAdapter(Class adapter) {
if (adapter.isInstance(fVMAdapter)) {
return fVMAdapter;
} else if (adapter.isInstance(fNode)) {
return fNode;
// If the context implements the given adapter directly, it always takes
// precedence.
if (adapter.isInstance(this)) {
return this;
}
return null;
IVMProvider vmProvider = getVMNode().getVMProvider();
IVMAdapter vmAdapter = vmProvider.getVMAdapter();
if (adapter.isInstance(vmAdapter)) {
return vmAdapter;
} else if (adapter.isInstance(vmProvider)) {
return vmProvider;
} else if (adapter.isInstance(getVMNode())) {
return getVMNode();
}
return Platform.getAdapterManager().getAdapter(this, adapter);
}
/** Deriving classes must override. */

11
plugins/org.eclipse.dd.dsf.ui/src/org/eclipse/dd/dsf/ui/viewmodel/datamodel/AbstractDMVMNode.java
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@ -57,7 +57,7 @@ abstract public class AbstractDMVMNode extends AbstractVMNode implements IVMNode
private final IDMContext fDmc;
public DMVMContext(IDMContext dmc) {
super(getVMProvider().getVMAdapter(), AbstractDMVMNode.this);
super(AbstractDMVMNode.this);
fDmc = dmc;
}
@ -73,10 +73,13 @@ abstract public class AbstractDMVMNode extends AbstractVMNode implements IVMNode
Object superAdapter = super.getAdapter(adapter);
if (superAdapter != null) {
return superAdapter;
} else if (adapter.isInstance(fDmc)) {
return fDmc;
} else {
return fDmc.getAdapter(adapter);
// Delegate to the Data Model to find the context.
if (adapter.isInstance(fDmc)) {
return fDmc;
} else {
return fDmc.getAdapter(adapter);
}
}
}

5
plugins/org.eclipse.dd.examples.dsf/src/org/eclipse/dd/examples/dsf/filebrowser/FileVMContext.java
View file

@ -13,13 +13,12 @@ package org.eclipse.dd.examples.dsf.filebrowser;
import java.io.File;
import org.eclipse.dd.dsf.ui.viewmodel.AbstractVMContext;
import org.eclipse.dd.dsf.ui.viewmodel.IVMAdapter;
import org.eclipse.dd.dsf.ui.viewmodel.IVMNode;
class FileVMContext extends AbstractVMContext {
private File fFile;
FileVMContext(IVMAdapter adapter, IVMNode layoutNode, File file) {
super(adapter, layoutNode);
FileVMContext(IVMNode layoutNode, File file) {
super(layoutNode);
fFile = file;
}

4
plugins/org.eclipse.dd.examples.dsf/src/org/eclipse/dd/examples/dsf/filebrowser/FileVMNode.java
View file

@ -135,7 +135,7 @@ class FileVMNode
int offset = update.getOffset() != -1 ? update.getOffset() : 0;
int length = update.getLength() != -1 ? update.getLength() : files.length;
for (int i = offset; (i < files.length) && (i < (offset + length)); i++) {
update.setChild(new FileVMContext(fProvider.getVMAdapter(), FileVMNode.this, files[i]), i);
update.setChild(new FileVMContext(FileVMNode.this, files[i]), i);
}
update.done();
}
@ -260,7 +260,7 @@ class FileVMNode
File[] pathSegmentDirectoryFiles = pathSegment.listFiles();
delta = delta.addNode(
new FileVMContext(fProvider.getVMAdapter(), FileVMNode.this, pathSegment),
new FileVMContext(FileVMNode.this, pathSegment),
nodeOffset + Arrays.asList(allFilesInDirectory).indexOf(pathSegment),
IModelDelta.NO_CHANGE,
pathSegmentDirectoryFiles != null ? pathSegmentDirectoryFiles.length : 0);

4
plugins/org.eclipse.dd.examples.dsf/src/org/eclipse/dd/examples/dsf/filebrowser/FilesystemRootsVMNode.java
View file

@ -56,7 +56,7 @@ class FilesystemRootsVMNode extends AbstractVMNode
int offset = update.getOffset() != -1 ? update.getOffset() : 0;
int length = update.getLength() != -1 ? update.getLength() : files.length;
for (int i = offset; (i < files.length) && (i < (offset + length)); i++) {
update.setChild(new FileVMContext(getVMProvider().getVMAdapter(), FilesystemRootsVMNode.this, files[i]), i);
update.setChild(new FileVMContext(FilesystemRootsVMNode.this, files[i]), i);
}
update.done();
}
@ -168,7 +168,7 @@ class FilesystemRootsVMNode extends AbstractVMNode
// Check if the specified file is not one of the roots.
if (index < roots.length) {
ModelDelta delta = parentDelta.addNode(
new FileVMContext(getVMProvider().getVMAdapter(), FilesystemRootsVMNode.this, eventRoot),
new FileVMContext(FilesystemRootsVMNode.this, eventRoot),
index, IModelDelta.NO_CHANGE);
if (eventFile.equals(eventRoot)) {