public final class UnknownFieldSetLite extends Object
UnknownFieldSetLite
is used to keep track of fields which were seen when parsing a protocol message but whose
field numbers or types are unrecognized. This most frequently occurs when new fields are added to a message type and
then messages containing those fields are read by old software that was compiled before the new types were added.
For use by generated code only.
Modifier and Type | Method and Description |
---|---|
boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
static UnknownFieldSetLite |
getDefaultInstance()
Get an empty
UnknownFieldSetLite . |
int |
getSerializedSize()
Get the number of bytes required to encode this set.
|
int |
hashCode()
Returns a hash code value for the object.
|
void |
makeImmutable()
Marks this object as immutable.
|
void |
writeTo(CodedOutputStream output)
Serializes the set and writes it to
output . |
public boolean equals(@Nullable 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.
equals
in class Object
obj
- the reference object with which to compare.true
if this object is the same as the obj argument; false
otherwise.Object.hashCode()
,
HashMap
public static UnknownFieldSetLite getDefaultInstance()
UnknownFieldSetLite
.
For use by generated code only.
public int getSerializedSize()
For use by generated code only.
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 class Object
Object.equals(java.lang.Object)
,
System.identityHashCode(java.lang.Object)
public void makeImmutable()
Future calls to methods that attempt to modify this object will throw.
public void writeTo(CodedOutputStream output) throws IOException
output
.
For use by generated code only.
IOException