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java.lang.Objectorg.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base.ClassComparator
public class ClassComparator
The class comparator can be used to compare and sort classes and their superclasses. The comparator is not able to compare classes which have no relation...
Constructor Summary | |
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ClassComparator()
Deprecated. Defaultconstructor. |
Method Summary | |
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int |
compare(Object o1,
Object o2)
Deprecated. Compares its two arguments for order. |
boolean |
isComparable(Class c1,
Class c2)
Deprecated. Checks whether the given classes are comparable. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.util.Comparator |
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equals |
Constructor Detail |
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public ClassComparator()
Method Detail |
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public int compare(Object o1, Object o2)
Note: throws ClassCastException if the arguments' types prevent them from being compared by this Comparator. And IllegalArgumentException if the classes share no relation. 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."
compare
in interface Comparator
o1
- the first object to be compared.o2
- the second object to be compared.
public boolean isComparable(Class c1, Class c2)
c1
- the first class to comparec2
- the second class to compare
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