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ICU-6824 Merged check utilities from CLDR.

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X-SVN-Rev: 26409
This commit is contained in:
Mark Davis 2009-07-22 01:05:24 +00:00
parent 6a6561f8df
commit f1ff9f053f
1 changed files with 20 additions and 5 deletions
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25
icu4j/main/classes/core/src/com/ibm/icu/impl/Utility.java
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@ -170,11 +170,26 @@ public final class Utility {
/**
* Convenience utility. Does null checks on objects, then calls equals.
*/
public final static boolean objectEquals(Object source, Object target) {
if (source == null)
return (target == null);
else
return source.equals(target);
public final static boolean objectEquals(Object a, Object b) {
return a == null ?
b == null ? true : false :
b == null ? false : a.equals(b);
}
/**
* Convenience utility. Does null checks on objects, then calls compare.
*/
public static <T> int checkCompare(Comparable a, Comparable b) {
return a == null ?
b == null ? 0 : -1 :
b == null ? 1 : a.compareTo(b);
}
/**
* Convenience utility. Does null checks on object, then calls hashCode.
*/
public static int checkHash(Object a) {
return a == null ? 0 : a.hashCode();
}
/**