How to unApply a viewCriteria programmatically in ADF : https://cedricleruth.com/how-to-unapply-a-view-criteria-programmatically-from-a-view-object-in-adf/

UnApplyViewCriteriaOnViewObjectIterator.java

/**
 * Unapply a view criteria named MyViewCriteria to it's ViewObject
 * by getting it through the binding iterator MyViewObjectIterator
 * Full library: https://github.com/CedricL46/Oracle-ADF-and-JSF-Utils-libraries
 */
public void UnApplyViewCriteriaOnViewObjectByIteratorName(String MyViewCriteriaName, String MyViewObjectIteratorName) {
	try { 
		//Get The viewObject from the iterator define in the current binding context
		ViewObject vo = this.getViewObjectFromIteratorName(MyViewObjectIteratorName)
		//Get all it's ViewCriteria using the ViewCriteriaManager of the ViewObject
		ViewCriteriaManager vcm = vo.getViewCriteriaManager();
		//remove the specified viewCriteria
		boolean unApplyResult = vcm.removeApplyViewCriteriaName(MyViewCriteriaName);		
		//That's all you need if the iterator is set to be refresh after this
		//If not you can force the ViewObject to execute by uncommenting the following :
		//vo.executeQuery(); 
	} catch (NullPointerException e) {
		//Log and warn for null
		//Often occur when there is an error in the provided attributes 
		//(MyViewCriteriaName, MyViewObjectIteratorName)
	} catch (Exception e) {
		//Log and warn for other exceptions - Should never be needed
}
	
/**
 * Full library: https://github.com/CedricL46/Oracle-ADF-and-JSF-Utils-libraries
 * Useful function to get ViewObject from IteratorName
 * The iterator need to have a least one binding define in the current page
 * In this gist it's a private but i advice setting it as a public static in an utility class available for the whole Controller
 */
 private ViewObject getViewObjectFromIteratorName(String MyViewObjectIteratorName) {
	ViewObject vo = null;
	try {
		DCBindingContainer bindings = (DCBindingContainer) BindingContext.getCurrent().getCurrentBindingsEntry();
		DCIteratorBinding iterator = bindings.findIteratorBinding(MyViewObjectIteratorName);
		vo = iterator.getViewObject();		
	} catch (NullPointerException e) {
		//Log and warn for null
		//Often occur when there is an error in the provided attributes 
		//or if the iterator doesn't have a least one binding define in the current page
	}
	return vo;
}