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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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java.lang.Object
oracle.ide.panels.MetaTraversable
oracle.ide.panels.Navigable
public class Navigable
Each instance of the Navigable
class represents a single tree node. Clicking on that tree node brings up the UI corresponding to the associated Traversable
.
A Navigable
instance is responsible for building part of the tree structure through its createTreeNode(NavigableContext)
method. This allows a particular Navigable
implementation to provide for more complex ways of determining the structure of its subtree.
Subclasses with additional member fields will also need to override the copyTo(Object)
and copyToImpl(Navigable)
methods in order to maintain correct copying behavior. Without the right copying behavior, a Navigable
subclass will not cooperate properly with a NavigableRegistry
.
Nested Class Summary | |
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static class |
Navigable.NavigableComparator Comparator implementation used for sorting child Navigable instances by label. |
Field Summary | |
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static int |
BOLD |
static java.lang.String |
DEFAULT_CHILD_COMPARATOR_KEY The key to use for looking up the default Navigable.NavigableComparator in a NavigableContext ; the Comparator is used for sorting Navigable children during a call to createTreeNode(NavigableContext) . |
static int |
ITALIC |
static java.util.Comparator |
NAVIGABLE_COMPARATOR A standard Navigable.NavigableComparator that sorts Navigable instances by the short label. |
static int |
PLAIN |
Constructor Summary | |
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protected |
Navigable() Should only be used by copyTo(Object) . |
protected |
Navigable(java.lang.String shortLabel) Creates a new Navigable with the specified label. |
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Navigable(java.lang.String shortLabel, java.lang.Class traversableClass) Creates a new Navigable with the specified label and Traversable class. |
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Navigable(java.lang.String shortLabel, java.lang.Class traversableClass, java.lang.Class[] constructorArgTypes, java.lang.Object[] constructorArgs, Navigable[] childNavigables) |
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Navigable(java.lang.String shortLabel, java.lang.Class traversableClass, Navigable[] childNavigables) Creates a new Navigable with the specified label, Traversable class, and array of child Navigable s. |
Method Summary | |
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void |
addChildNavigable(Navigable childNavigable) Adds a new Navigable to the array of child Navigables. |
protected void |
appendChildNavigables(javax.swing.tree.DefaultMutableTreeNode parent, NavigableContext nc) This method calls getChildNavigables() to get the list of child Navigable objects. |
protected void |
appendChildNodes(javax.swing.tree.DefaultMutableTreeNode parent, Navigable[] children, NavigableContext nc) This method invokes createTreeNode(NavigableContext) on each Navigable specified in children and adds the resulting DefaultMutableTreeNode (if it is not null ) to the parent . |
protected void |
appendDetailNavigables(javax.swing.tree.DefaultMutableTreeNode parent, NavigableContext nc) This method calls getDetailNavigables() to get the list of detail Navigable objects. |
java.lang.Object |
copyTo(java.lang.Object target) Subclasses must override this method if new member fields are introduced. |
protected void |
copyToImpl(Navigable copy) Subclasses must implement an appropriate variant of this method if new member fields are introduced. |
javax.swing.tree.DefaultMutableTreeNode |
createDetailRootNode(NavigableContext nc) When the Navigable is used to show detail nodes in a separate tree, this method is used to construct the detail tree, using the returned tree node as the root of the detail tree; in general, only NavigableUIContainer implementations should call this method directly. |
javax.swing.tree.DefaultMutableTreeNode |
createTreeNode(NavigableContext nc) This method constructs a DefaultMutableTreeNode that is to represent the Navigable in the tree; in general, only NavigableUIContainer implementations should call this method directly. |
protected javax.swing.tree.DefaultMutableTreeNode |
createTreeNodeImpl(NavigableContext nc) This method is the essential method in which a tree node that represents a Navigable is created. |
protected java.util.Comparator |
getChildComparator() Fetch the comparator to use for sorting the child navigables. |
protected Navigable[] |
getChildNavigables() By default, this returns the child Navigable s that were set when this DefaultNavigable was constructed. |
Navigable[] |
getChildren() |
protected Navigable[] |
getDetailNavigables() Returns null by default. |
int |
getDisplayStyle() |
javax.swing.Icon |
getIcon() This implementation always returns null . |
java.lang.String |
getLongLabel() This implementation simply invokes return getShortLabel() . |
java.lang.String |
getRawShortLabel() This method returns the entire short label string, including any occurrance of the mnemonic character, &. |
java.lang.String |
getShortLabel() This implementation returns the short label that was specified when this Navigable was created. |
java.lang.String |
getToolTipText() This implementation always returns null . |
protected boolean |
mayHaveChildren(NavigableContext nc) Overridable method to determine whether a Navigable may have children such that a + may be shown next to it in the tree. |
void |
setChildComparator(java.util.Comparator customComparator) Sets whether the child navigables are sorted or not. |
protected void |
setChildNavigables(Navigable[] childNavigables) Accessor for the private data member that stores the current child Navigable s. |
protected void |
setDataScope(Namespace dataScope) Sets the specified Namespace as the data scope for this Navigable . |
void |
setDisplayStyle(int displayStyle) |
void |
setShortLabel(java.lang.String shortLabel) |
protected static Navigable[] |
sortNavigables(Navigable[] navigables, java.util.Comparator comparator) Sorts the specified Navigable array using the specified Navigable.NavigableComparator , and returns a sorted version of the array. |
java.lang.String |
toString() |
Methods inherited from class oracle.ide.panels.MetaTraversable |
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copyToImpl, findHelpID, getTraversableClass, isUsingTraversableDefaultConstructor, newTraversable, newTraversable, setHelpID, setNameLink |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final int PLAIN
public static final int BOLD
public static final int ITALIC
public static final java.lang.String DEFAULT_CHILD_COMPARATOR_KEY
Navigable.NavigableComparator
in a NavigableContext
; the Comparator
is used for sorting Navigable
children during a call to createTreeNode(NavigableContext)
.
public static final java.util.Comparator NAVIGABLE_COMPARATOR
Navigable.NavigableComparator
that sorts Navigable
instances by the short label.Constructor Detail |
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protected Navigable(java.lang.String shortLabel)
Navigable
with the specified label. There is no associated Traversable
class, and the Navigable
has no children. In general, this constructor will be called by a subclass that overrides MetaTraversable.newTraversable(ApplyNotifier)
, getChildNavigables()
, and/or getDetailNavigables()
.
shortLabel
- The short label to display when rendering the UI for the Navigable
.public Navigable(java.lang.String shortLabel, java.lang.Class traversableClass)
Navigable
with the specified label and Traversable
class. The Navigable
has no children unless a subclass implementation provides them.
shortLabel
- The short label to display when rendering the UI for the Navigable
.traversableClass
- The Class
of the Traversable
associated with this Navigable
. Since many usages of Navigable
do not require any parameters when instantiating the Traversable
, this is provided as a convenience. Note that if the Traversable
class implements the ApplyListener
interface, instances will be added as an ApplyListener to the ApplyNotifier
linked to the NavigableUIContainer
.#newTraversable(ApplyNotifier)}.
public Navigable(java.lang.String shortLabel, java.lang.Class traversableClass, Navigable[] childNavigables)
Navigable
with the specified label, Traversable
class, and array of child Navigable
s.
shortLabel
- The short label to display when rendering the UI for the Navigable
.traversableClass
- The Class
of the Traversable
associated with this Navigable
. Since many usages of Navigable
do not require any parameters when instantiating the Traversable
, this is provided as a convenience. See MetaTraversable.newTraversable(ApplyNotifier)
.childNavigables
- An array of the children of this Navigable
. This parameter may be null
if there are no children.public Navigable(java.lang.String shortLabel, java.lang.Class traversableClass, java.lang.Class[] constructorArgTypes, java.lang.Object[] constructorArgs, Navigable[] childNavigables)
protected Navigable()
copyTo(Object)
.Method Detail |
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public java.lang.Object copyTo(java.lang.Object target)
Copyable
for details.copyTo
in interface Copyable
copyTo
in class MetaTraversable
target
- The target object to which the state of this
object should be copied. If target
is null
, then the copyTo
method will return a new instance of this
class.this
object was copied. If the target
was non-null
, then the return value is the same as the target
object that was passed in; otherwise, the return value is a new instance of this
class.Copyable.copyTo(Object)
protected final void copyToImpl(Navigable copy)
protected final void copyToImpl( <subclass_name> copy );
Then, the subclass implementation must first delegate to this method with a call to:
super.copyToImpl( copy );
This ensures that the copyTo(Object)
method instantiates the correct class when the target is null
and also provides an extendable way of implementing copying behavior.copy
- The Navigable
to which this Navigable
's state should be copied.public java.lang.String getShortLabel()
Navigable
was created. If the mnemonic character & was present in the short label, this implementation will strip that character out of the returned string.public java.lang.String getRawShortLabel()
public java.lang.String getLongLabel()
return getShortLabel()
.public javax.swing.Icon getIcon()
null
.public java.lang.String getToolTipText()
null
.public java.lang.String toString()
toString
in class java.lang.Object
public int getDisplayStyle()
public void setDisplayStyle(int displayStyle)
public void setShortLabel(java.lang.String shortLabel)
public void setChildComparator(java.util.Comparator customComparator)
Navigable
instance.customComparator
- comparator to use for sorting, null to disable sortingprotected java.util.Comparator getChildComparator()
public Navigable[] getChildren()
public javax.swing.tree.DefaultMutableTreeNode createTreeNode(NavigableContext nc)
DefaultMutableTreeNode
that is to represent the Navigable
in the tree; in general, only NavigableUIContainer
implementations should call this method directly. Subclasses may, of course, override the behavior.
The user object of the returned tree node (and all its descendant nodes) must be an instance of Navigable
.
If the return value is null
, the Navigable
is omitted from the tree.
Note: this method returns DefaultMutableTreeNode instead of just MutableTreeNode because the getUserObject(...) method is not specified by MutableTreeNode.
nc
- The NavigableContext
in which this Navigable
should render the tree node.Navigable
.public javax.swing.tree.DefaultMutableTreeNode createDetailRootNode(NavigableContext nc)
Navigable
is used to show detail nodes in a separate tree, this method is used to construct the detail tree, using the returned tree node as the root of the detail tree; in general, only NavigableUIContainer
implementations should call this method directly. Subclasses may, of course, override the behavior.
The root is not actually displayed in the detail tree, so the user object associated with the root is not important. However, all descendants of the returned root must also be instances of DefaultMutableTreeNode
whose user objects are instances of Navigable
.
It is important that this method return a non-null
value, even if there are no detail root nodes.
nc
- The NavigableContext
in which this Navigable
should render the tree node.Navigable
has no detail nodes, then this method must return an empty tree node.public void addChildNavigable(Navigable childNavigable)
Navigable
to the array of child Navigables.The
- child Navigable
to add.protected void setDataScope(Namespace dataScope)
Namespace
as the data scope for this Navigable
. This method must be called at some point before a Navigable
is used in a UI container.
This is a transient property, so it will not be copied in the copyTo(Object)
or copyToImpl(Navigable)
method.
dataScope
- The Namespace
that represents the data scope for this Navigable
.protected Navigable[] getChildNavigables()
Navigable
s that were set when this DefaultNavigable
was constructed. Subclasses can override this method to specify a custom list of children. The result of this method is used by appendChildNavigables(...)
to append child nodes.Navigable
s of this Navigable
.protected void setChildNavigables(Navigable[] childNavigables)
Navigable
s.The
- child Navigable
s to associate with this Navigable
.protected Navigable[] getDetailNavigables()
null
by default. Subclasses should override this method in order to specify a list of detail Navigable
s. The result of this method is used by appendDetailNavigables(DefaultMutableTreeNode, NavigableContext)
to append detail nodes.Navigables
representing the detail for this Navigable
. Detail nodes are uncommonly used, so in order to specify detail nodes, a subclass must override this method's implementation in order to provide a return value other than null
.protected javax.swing.tree.DefaultMutableTreeNode createTreeNodeImpl(NavigableContext nc)
Navigable
is created. It is called from createTreeNode(NavigableContext)
. This implementation has been separated to express a specific step in the Template Method design pattern for creating a Navigable
tree node.nc
- The NavigableContext
in which this Navigable
should render the tree node.Navigable
has no detail nodes, then this method must return an empty tree node.protected void appendChildNavigables(javax.swing.tree.DefaultMutableTreeNode parent, NavigableContext nc)
getChildNavigables()
to get the list of child Navigable
objects. Then this method calls appendChildNodes
to append the child Navigable
s to the specified parent.parent
- The node to which the child nodes will be added.nc
- The NavigableContext
in which this Navigable
should render the child tree nodes.protected void appendChildNodes(javax.swing.tree.DefaultMutableTreeNode parent, Navigable[] children, NavigableContext nc)
createTreeNode(NavigableContext)
on each Navigable
specified in children
and adds the resulting DefaultMutableTreeNode
(if it is not null
) to the parent
.parent
- The node to which the child nodes will be added.children
- The child Navigable
s whose DefaultMutableTreeNode
representations are to be added to the parent
.nc
- The NavigableContext
in which this Navigable
should render its tree nodes.protected void appendDetailNavigables(javax.swing.tree.DefaultMutableTreeNode parent, NavigableContext nc)
getDetailNavigables()
to get the list of detail Navigable
objects. Then this method calls appendChildNodes
to append the detail Navigable
s to the specified parent
.parent
- The node to which the detail nodes will be added.nc
- The NavigableContext
in which this Navigable
should render its tree nodes.protected static Navigable[] sortNavigables(Navigable[] navigables, java.util.Comparator comparator)
Navigable
array using the specified Navigable.NavigableComparator
, and returns a sorted version of the array. The input array is never modified; if the array might need sorting, a copy of the array is sorted and returned instead.protected boolean mayHaveChildren(NavigableContext nc)
Navigable
may have children such that a + may be shown next to it in the tree. Implementations can override this when the result is known a priori and a call to getChildNavigables()
could be expensive. The test should include detail Navigable
instances as well if the NavigableContext
specifies that detail nodes should be shown as childrennc
- The NavigableContext
used to determine the context of the check
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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