Class NodeComparator
- All Implemented Interfaces:
Comparator
NodeComparator
is a Comparator
of Node instances which
is capable of comparing Nodes for equality based on their values.
- Version:
- $Revision: 1.10 $
- Author:
- James Strachan
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionint
Compares its two arguments for order.int
int
int
compare
(CharacterData t1, CharacterData t2) int
int
compare
(DocumentType o1, DocumentType o2) int
int
int
int
int
int
int
compareContent
(Branch b1, Branch b2) Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface java.util.Comparator
equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong
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Constructor Details
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NodeComparator
public NodeComparator()
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Method Details
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compare
Compares its two arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.The implementor must ensure that sgn(compare(x, y)) == -sgn(compare(y, x)) for all x and y. (This implies that compare(x, y) must throw an exception if and only if compare(y, x) throws an exception.)
The implementor must also ensure that the relation is transitive: ((compare(x, y)>0) && (compare(y, z)>0)) implies compare(x, z)>0.
Finally, the implementer must ensure that compare(x, y)==0 implies that sgn(compare(x, z))==sgn(compare(y, z)) for all z.
It is generally the case, but not strictly required that (compare(x, y)==0) == (x.equals(y)). Generally speaking, any comparator that violates this condition should clearly indicate this fact. The recommended language is "Note: this comparator imposes orderings that are inconsistent with equals."
- Specified by:
compare
in interfaceComparator
- Parameters:
o1
- the first object to be compared.o2
- the second object to be compared.- Returns:
- a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.
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compare
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compare
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compare
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compare
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compare
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compare
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compare
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compare
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compare
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compare
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compareContent
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compare
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