Class Path2GCRootsQuery.Tree
- java.lang.Object
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- org.eclipse.mat.internal.snapshot.inspections.Path2GCRootsQuery.Tree
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- All Implemented Interfaces:
IDecorator
,IIconProvider
,IResult
,IResultTree
,ISelectionProvider
,IStructuredResult
- Enclosing class:
- Path2GCRootsQuery
public static final class Path2GCRootsQuery.Tree extends Object implements IResultTree, IIconProvider, IDecorator, ISelectionProvider
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Field Summary
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Fields inherited from interface org.eclipse.mat.query.IIconProvider
EMPTY
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Fields inherited from interface org.eclipse.mat.query.ISelectionProvider
EMPTY
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Constructor Summary
Constructors Constructor Description Tree(ISnapshot snapshot, int objectId, IPathsFromGCRootsComputer computer)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description List<?>
addNextPath()
List<?>
getChildren(Object parent)
Returns the child elements of the given parent.Column[]
getColumns()
The columns of the tree or table.Object
getColumnValue(Object row, int columnIndex)
Returns the (unformatted) value of a table/tree cell.IContextObject
getContext(Object row)
The default context of the row which is used to display information in the object inspector.List<?>
getElements()
Returns the root elements of the tree.URL
getIcon(Object row)
int
getNumberOfPaths()
ResultMetaData
getResultMetaData()
(Optionally) Return meta data of the result needed to fine-tune the display of the result.boolean
hasChildren(Object element)
Returns whether the given element has children.boolean
isExpanded(Object row)
Should this node be expanded.boolean
isSelected(Object row)
Has the user selected this row?boolean
morePathsAvailable()
String
prefix(Object row)
Add before the object for example <local>String
suffix(Object row)
Add after the object
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Constructor Detail
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Tree
public Tree(ISnapshot snapshot, int objectId, IPathsFromGCRootsComputer computer)
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Method Detail
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addNextPath
public List<?> addNextPath() throws SnapshotException
- Returns:
- the ancestors of the first newly created object
- Throws:
SnapshotException
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morePathsAvailable
public boolean morePathsAvailable()
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getNumberOfPaths
public int getNumberOfPaths()
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getResultMetaData
public ResultMetaData getResultMetaData()
Description copied from interface:IResult
(Optionally) Return meta data of the result needed to fine-tune the display of the result. This could include an additional context, an additional query to run on selected data from the result , additional calculated columns, or an indication that the results are already presorted.- Specified by:
getResultMetaData
in interfaceIResult
- Returns:
- the metadata for the result, used to obtain extra data
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getColumns
public final Column[] getColumns()
Description copied from interface:IStructuredResult
The columns of the tree or table.- Specified by:
getColumns
in interfaceIStructuredResult
- Returns:
- an array of all the columns
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getElements
public List<?> getElements()
Description copied from interface:IResultTree
Returns the root elements of the tree.- Specified by:
getElements
in interfaceIResultTree
- Returns:
- a list of all the root elements of the tree
as opaque row objects representing each row
which can be passed to
IResultTree.getChildren(Object)
orIStructuredResult.getContext(Object)
orIStructuredResult.getColumnValue(Object, int)
.
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getChildren
public List<?> getChildren(Object parent)
Description copied from interface:IResultTree
Returns the child elements of the given parent.- Specified by:
getChildren
in interfaceIResultTree
- Parameters:
parent
- The row object as returned by theIResultTree.getElements()
orIResultTree.getChildren(Object)
methods.- Returns:
- a list of children of this branch of the tree
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hasChildren
public boolean hasChildren(Object element)
Description copied from interface:IResultTree
Returns whether the given element has children.- Specified by:
hasChildren
in interfaceIResultTree
- Parameters:
element
- the opaque object used to indicate which branch- Returns:
- true if this element has children
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getColumnValue
public final Object getColumnValue(Object row, int columnIndex)
Description copied from interface:IStructuredResult
Returns the (unformatted) value of a table/tree cell.- Specified by:
getColumnValue
in interfaceIStructuredResult
- Parameters:
row
- The row object as returned by theIResultTable.getRow(int)
orIResultTree.getElements()
orIResultTree.getChildren(Object)
methodscolumnIndex
- The index of the column.- Returns:
- the cell value
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getContext
public final IContextObject getContext(Object row)
Description copied from interface:IStructuredResult
The default context of the row which is used to display information in the object inspector. Unless no context provider is given via theResultMetaData
, it is also used for the context menu on a row.- Specified by:
getContext
in interfaceIStructuredResult
- Parameters:
row
- The row object as returned by theIResultTable.getRow(int)
orIResultTree.getElements()
orIResultTree.getChildren(Object)
methods.- Returns:
- a context object holding details about that row
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getIcon
public URL getIcon(Object row)
- Specified by:
getIcon
in interfaceIIconProvider
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isExpanded
public boolean isExpanded(Object row)
Description copied from interface:ISelectionProvider
Should this node be expanded.- Specified by:
isExpanded
in interfaceISelectionProvider
- Parameters:
row
- the chosen row- Returns:
- true if it should be expanded.
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isSelected
public boolean isSelected(Object row)
Description copied from interface:ISelectionProvider
Has the user selected this row?- Specified by:
isSelected
in interfaceISelectionProvider
- Parameters:
row
- the chosen row- Returns:
- true if selected
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prefix
public final String prefix(Object row)
Description copied from interface:IDecorator
Add before the object for example <local>- Specified by:
prefix
in interfaceIDecorator
- Parameters:
row
- used to find the row- Returns:
- the prefix or null
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suffix
public final String suffix(Object row)
Description copied from interface:IDecorator
Add after the object- Specified by:
suffix
in interfaceIDecorator
- Parameters:
row
- used to find the row- Returns:
- the suffix or null
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