How to create and register an tab Validator in Windchill

[NP_9998831]

How to hide a tab for change request based on a value.

[NP_9998831 · Accepted solution]

Using validator we can hide a tab.
Below is the code and article:

https://www.ptc.com/en/support/article/CS333921?source=search

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package ext.test.changerequest.validators;

import java.rmi.RemoteException;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.ptc.core.ui.validation.DefaultUIComponentValidator;
import com.ptc.core.ui.validation.UIValidationCriteria;
import com.ptc.core.ui.validation.UIValidationKey;
import com.ptc.core.ui.validation.UIValidationStatus;

import wt.change2.WTChangeRequest2;
import wt.fc.Persistable;
import wt.fc.WTReference;
import wt.util.WTException;

public class HideChangeRequestNewTab extends DefaultUIComponentValidator {
private static final Logger logger = LogManager.getLogger(HideChangeRequestNewTab.class.getName());

@Override
public UIValidationStatus preValidateAction(UIValidationKey validationKey,
UIValidationCriteria validationCriteria) {

// Call to Super() to perform basic validation and initialize the result
UIValidationStatus result = super.preValidateAction(validationKey, validationCriteria);

// Get the current object from the context.
WTReference contextObj = validationCriteria.getContextObject();
Persistable object = contextObj.getObject();
WTChangeRequest2 req = null;
String changeType = "";
req = (WTChangeRequest2) object;
try {
changeType = wt.type.TypedUtilityServiceHelper.service.getLocalizedTypeName(req)
.getLocalizedMessage(wt.session.SessionHelper.getLocale());
System.out.println("Type =" + changeType);
} catch (RemoteException | WTException e) {
logger.debug("Exception in HideChangeRequestNewTab file " + e);
}
if (changeType.equalsIgnoreCase("Change Request")) {
result = UIValidationStatus.ENABLED;
} else {
result = UIValidationStatus.HIDDEN;
}

return result;
}
}