Type Mismatch when trying to connect a multi-valued field to Java Bean with XPages

Question

Type Mismatch when trying to connect a multi-valued field to Java Bean with XPages

I have this code:

<xe:formTable id="formTable1" formTitle="User Roles"> <xe:formRow id="formRow1" label="Category Admin"> <xe:djextNameTextBox id="edtCatAdmin" multipleSeparator="," value="#{exhibitorInfo.categoryAdmin}" /> <xe:namePicker id="namePicker1" for="edtCatAdmin"> <xe:this.dataProvider> <xe:namePickerAggregator> <xe:this.dataProviders> <xe:dominoNABNamePicker addressBookSel="first" groups="false" people="true" /> <xe:dominoViewNamePicker labelColumn="mailinName" viewName="lkp_MailIn" label="Group Mailboxes" /> </xe:this.dataProviders> </xe:namePickerAggregator> </xe:this.dataProvider> </xe:namePicker> </xe:formRow> </xe:formTable>

The goal is to simply select a multi-valued name picker to store it in the Java Bean, and not in the document field. So the name picker points to xe: djextNameTextBox to make it easier to remove names, and xe: djextNameTextBox is bound to my bean.

Using this Java code -

 public void setCategoryAdmin(ArrayList<String> categoryAdmin) { System.out.println("Set CategoryAdmin - List"); this.categoryAdmin = categoryAdmin; } public void setCategoryAdmin(String categoryAdmin) { System.out.println("Set CategoryAdmin - String"); if (!this.isBlankString(categoryAdmin)) { ArrayList<String> al = new ArrayList<String>(); al.add(categoryAdmin); this.setCategoryAdmin(al); } }

It seems to work fine for MULTIPLE values. but if only one valule is used, I get an error: java.lang.IllegalArgumentException: argument type mismatch

I THINK that this is because XPages returns an array for multiple values and String for single values. But I'm not sure how to do this.

Any advice would be appreciated! Thanks!!

- UPDATE-- This code from the blogpost Camac is associated with seems to work.

 public Object getCategoryAdmin() { System.out.println("getCategoryAdmin"); return this.categoryAdmin; } @SuppressWarnings("unchecked") public void setCategoryAdmin( Object inputMulti ) { this.categoryAdmin = this.translateToVector( inputMulti ); } @SuppressWarnings("unchecked") public Vector translateToVector( Object object ){ if( object instanceof String ){ Vector list = new Vector(); list.add( object ); return list; } if( object instanceof List ){ return (Vector)object; } return null; }