public void addIdentityPattern(String classPattern, String fieldPattern) {
    identityPatterns.add(new String[] {classPattern, fieldPattern});
  }
Add a new class pattern / identity-field pattern tuple

@param classPattern the class pattern
@param fieldPattern the pattern to identify a field as an identity field within the given class
       pattern
geode-core/src/main/java/org/apache/geode/pdx/internal/AutoSerializableManager.java