public class BasicMarker extends Object implements Marker
Marker
interface.ANY_MARKER, ANY_NON_NULL_MARKER
Modifier and Type | Method and Description |
---|---|
void |
add(Marker reference)
Add a reference to another Marker.
|
boolean |
contains(Marker other)
Does this marker contain a reference to the 'other' marker? Marker A is defined
to contain marker B, if A == B or if B is referenced by A, or if B is referenced
by any one of A's references (recursively).
|
boolean |
contains(String name)
This method is mainly used with Expression Evaluators.
|
boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
String |
getName()
Get the name of this Marker.
|
boolean |
hasChildren() |
int |
hashCode()
Returns a hash code value for the object.
|
boolean |
hasReferences()
Does this marker have any references?
|
Iterator<Marker> |
iterator()
Returns an Iterator which can be used to iterate over the references of this
marker.
|
boolean |
remove(Marker referenceToRemove)
Remove a marker reference.
|
String |
toString()
Returns a string representation of the object.
|
public void add(Marker reference)
Marker
public boolean contains(Marker other)
Marker
public boolean contains(String name)
public boolean equals(Object obj)
Object
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.
public String getName()
Marker
public boolean hasChildren()
hasChildren
in interface Marker
public int hashCode()
Object
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 JavaTM programming language.)
hashCode
in interface Marker
hashCode
in class Object
Object.equals(java.lang.Object)
,
System.identityHashCode(java.lang.Object)
public boolean hasReferences()
Marker
hasReferences
in interface Marker
public Iterator<Marker> iterator()
Marker
public boolean remove(Marker referenceToRemove)
Marker
public String toString()
Object
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())