J2EE^TM Developer's Guide
Entity Beans

Comparing Entity Beans

A client can determine if the object references of two entity beans are identical by invoking the isIdentical method:

Account accta, acctb;
. . .
if (accta.isIdentical(acctb))
   System.out.println("identical");

Or, the client can fetch and compare the primary keys of two entity beans:

String key1 = (String)accta.getPrimaryKey();
String key2 = (String)acctb.getPrimaryKey();

if (key1.compareTo(key2) == 0)
   System.out.println("equal");

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