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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK 11g Release 2 (11.1.2.2.0) E17493-03 |
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java.lang.Object
oracle.ide.util.ObjectUtils
public final class ObjectUtils
Constructor Summary | |
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ObjectUtils() |
Method Summary | |
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static void |
checkArg(boolean expression, java.lang.Object errorMessage) Throws IAE if expression evaluates to false. |
static void |
checkNotNull(java.lang.Object reference, java.lang.Object errorMessage) Throws NPE if reference is null. |
static boolean |
equal(java.lang.Object a, java.lang.Object b) Returns true if both arguments are null or if both are not null and a.equals(b) |
static int |
hashCode(java.lang.Object... objs) Returns a hashcode of several arguments grouped together in an array. If there is only a single argument then its hashcode will be returned if the argument is not null. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ObjectUtils()
Method Detail |
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public static int hashCode(java.lang.Object... objs)
objs
- one or more elementspublic static boolean equal(java.lang.Object a, java.lang.Object b)
a
- an Object referenceb
- an Object referencepublic static void checkNotNull(java.lang.Object reference, java.lang.Object errorMessage)
reference
- an Object referenceerrorMessage
- an additional message to be supplied to the NPE if the reference is null.public static void checkArg(boolean expression, java.lang.Object errorMessage)
expression
- any boolean expressionerrorMessage
- an additional message to be supplied to the IAE if the reference is null.
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK 11g Release 2 (11.1.2.2.0) E17493-03 |
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