| clone | back to summary
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| public AbstractIndexedFileCacheBacking.IndexEntry clone() Overrides java.lang.Object.clone.
Doc from java.lang.Object.clone.
Creates and returns a copy of this object. The precise meaning
of "copy" may depend on the class of the object. The general
intent is that, for any object x, the expression:
x.clone() != x
will be true, and that the expression:
x.clone().getClass() == x.getClass()
will be true, but these are not absolute requirements.
While it is typically the case that:
x.clone().equals(x)
will be true, this is not an absolute requirement.
By convention, the returned object should be obtained by calling
super.clone. If a class and all of its superclasses (except
Object) obey this convention, it will be the case that
x.clone().getClass() == x.getClass().
By convention, the object returned by this method should be independent
of this object (which is being cloned). To achieve this independence,
it may be necessary to modify one or more fields of the object returned
by super.clone before returning it. Typically, this means
copying any mutable objects that comprise the internal "deep structure"
of the object being cloned and replacing the references to these
objects with references to the copies. If a class contains only
primitive fields or references to immutable objects, then it is usually
the case that no fields in the object returned by super.clone
need to be modified.
- Returns:AbstractIndexedFileCacheBacking.IndexEntry
a clone of this instance.
- Annotations
- @Override
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| equals | back to summary
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| public boolean equals(Object obj) Overrides java.lang.Object.equals.
Doc from java.lang.Object.equals.
Indicates whether some other object is "equal to" this one.
The equals method implements an equivalence relation
on non-null object references:
- It is reflexive: for any non-null reference value
x, x.equals(x) should return
true.
- It is symmetric: for any non-null reference values
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
- It is transitive: for any non-null reference values
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
- It is consistent: for any non-null reference values
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.
- For any non-null reference value
x,
x.equals(null) should return false.
An equivalence relation partitions the elements it operates on
into equivalence classes; all the members of an
equivalence class are equal to each other. Members of an
equivalence class are substitutable for each other, at least
for some purposes.
- Parameters
- obj:Object
the reference object with which to compare.
- Returns:boolean
true if this object is the same as the obj
argument; false otherwise.
- Annotations
- @Override
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| hashCode | back to summary
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| public int hashCode() Overrides java.lang.Object.hashCode.
Doc from java.lang.Object.hashCode.
Returns a hash code value for the object. This method is
supported for the benefit of hash tables such as those provided by
java.util.HashMap.
The general contract of hashCode is:
- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
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.
- If two objects are equal according to the
equals method, then calling the hashCode method on each of the two objects must produce the
same integer result.
- It is not required that if two objects are unequal
according to the
equals 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.
- Returns:int
a hash code value for this object.
- Annotations
- @Override
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| toString | back to summary
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| public String toString() Overrides java.lang.Object.toString.
Doc from java.lang.Object.toString.
Returns a string representation of the object.
- Returns:String
a string representation of the object.
- Annotations
- @Override
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