@Beta @Immutable public final class ElementOrder<T> extends Object
MutableGraph<Integer> graph = GraphBuilder.directed().nodeOrder(ElementOrder.<Integer>natural()).build();
|Modifier and Type||Class and Description|
The type of ordering that this object specifies.
|Modifier and Type||Method and Description|
Indicates whether some other object is "equal to" this one.
Returns a hash code value for the object.
Returns an instance which specifies that insertion ordering is guaranteed.
Returns an instance which specifies that the natural ordering of the elements is guaranteed.
Returns an instance which specifies that the ordering of the elements is guaranteed to be determined by
Returns a string representation of the object.
Returns the type of ordering used.
Returns an instance which specifies that no ordering is guaranteed.
public static <S> ElementOrder<S> unordered()
public static <S> ElementOrder<S> insertion()
public static <S extends Comparable<? super S>> ElementOrder<S> natural()
public static <S> ElementOrder<S> sorted(Comparator<S> comparator)
public ElementOrder.Type type()
public Comparator<T> comparator()
UnsupportedOperationException- if comparator is not defined
public boolean equals(@Nullable Object obj)
equals method implements an equivalence relation
on non-null object references:
trueif and only if
y, multiple invocations of
trueor consistently return
false, provided no information used in
equalscomparisons on the objects is modified.
equals method for class
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values
y, this method returns
true if and only
y refer to the same object
x == y has the value
Note that it is generally necessary to override the
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.
obj- the reference object with which to compare.
trueif this object is the same as the obj argument;
public int hashCode()
The general contract of
hashCodemethod must consistently return the same integer, provided no information used in
equalscomparisons 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
hashCodemethod on each of the two objects must produce the same integer result.
Object.equals(java.lang.Object)method, then calling the
hashCodemethod 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
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.)
public String toString()
toStringmethod 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.
toString method for class
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
getClass().getName() + '@' + Integer.toHexString(hashCode())
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