protected class SimpleLinkedListView.LLNodeLoc extends Object implements NodeLocation, Locatable<SimpleLinkedListView.LLNodeLoc>
| Constructor and Description |
|---|
LLNodeLoc(int r,
String rId,
Object scope,
int c)
Creates a new LLNodeLoc.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one.
|
String |
getEntryDescription()
Gets a description to be used in a subview.
|
String |
getLabel()
Gets a label for the node location, such as an index label, or null if
none should be shown.
|
int |
getRow()
Gets the node's row, where row 0 is the main structure and nodes 1 and
beyond are local variable structures.
|
String |
getRowId()
Gets the node's row ID, where nodes with the same ID should be from the
same local variable.
|
Object |
getScope()
Gets a key for the scope of the local variable.
|
int |
hashCode()
Returns a hash code value for the object.
|
boolean |
isMoved(SimpleLinkedListView.LLNodeLoc loc)
Determines if the location of this and a node location are different
within a structure.
|
boolean |
isRepositioned(SimpleLinkedListView.LLNodeLoc loc)
Determines if the location of this and a node location would require
animation if they were two locations of a single node, assuming
Locatable.isMoved(NodeLocation) returned false for the other node. |
String |
toString()
Returns a string representation of the object.
|
public boolean equals(Object o)
The equals method implements an equivalence relation
on non-null object references:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
x and y, multiple invocations of
x.equals(y) consistently return true
or consistently return false, provided no
information used in equals comparisons on the
objects is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values x and
y, this method returns true if and only
if x and y refer to the same object
(x == y has the value true).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the
general contract for the hashCode method, which states
that equal objects must have equal hash codes.
equals in class Objecto - the reference object with which to compare.true if this object is the same as the obj
argument; false otherwise.Object.hashCode(),
HashMappublic String getEntryDescription()
getEntryDescription in interface NodeLocationpublic String getLabel()
getLabel in interface NodeLocationpublic int getRow()
getRow in interface NodeLocationpublic String getRowId()
getRowId in interface NodeLocationpublic Object getScope()
getScope in interface NodeLocationpublic int hashCode()
HashMap.
The general contract of hashCode is:
hashCode method
must consistently return the same integer, provided no information
used in equals comparisons on the object is modified.
This integer need not remain consistent from one execution of an
application to another execution of the same application.
equals(Object)
method, then calling the hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hash tables.
As much as is reasonably practical, the hashCode method defined by
class Object does return distinct integers for distinct
objects. (This is typically implemented by converting the internal
address of the object into an integer, but this implementation
technique is not required by the
Java™ programming language.)
hashCode in class ObjectObject.equals(java.lang.Object),
System.identityHashCode(java.lang.Object)public boolean isMoved(SimpleLinkedListView.LLNodeLoc loc)
isMoved in interface Locatable<SimpleLinkedListView.LLNodeLoc>loc - the node location to be compared.loc and the location of this item are
different locations within a structure, false if they are in different
structures or are at the same location in the same structure.public boolean isRepositioned(SimpleLinkedListView.LLNodeLoc loc)
Locatable.isMoved(NodeLocation) returned false for the other node.isRepositioned in interface Locatable<SimpleLinkedListView.LLNodeLoc>loc - the node location to be compared.loc and the
location of this, animation would be required, assuming that they are the
same location within a structure. For structures where structure location
defines screen position (linked lists, linked hashtables), this can just
return false.public String toString()
toString method returns a string that
"textually represents" this object. The result should
be a concise but informative representation that is easy for a
person to read.
It is recommended that all subclasses override this method.
The toString method for class Object
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `@', and
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())