question: public static Text [ ] toTextArray ( Document doc , Object o ) throws PageException { if ( o instanceof Node [ ] ) { Node [ ] nodes = ( Node [ ] ) o ; if ( _isAllOfSameType ( nodes , Node . TEXT_NODE ) ) return ( Text [ ] ) nodes ; Text [ ] textes = new Text [ nodes . length ] ; for ( int i = 0 ; i < nodes . length ; i ++ ) { textes [ i ] = toText ( doc , nodes [ i ] ) ; } return textes ; } else if ( o instanceof Collection ) { Collection coll = ( Collection ) o ; Iterator < Object > it = coll . valueIterator ( ) ; List < Text > textes = new ArrayList < Text > ( ) ; while ( it . hasNext ( ) ) { textes . add ( toText ( doc , it . next ( ) ) ) ; } return textes . toArray ( new Text [ textes . size ( ) ] ) ; } Node [ ] nodes = _toNodeArray ( doc , o ) ; if ( nodes != null ) return toTextArray ( doc , nodes ) ; try { return new Text [ ] { toText ( doc , o ) } ; } catch ( ExpressionException e ) { throw new XMLException ( "can't cast Object of type " + Caster . toClassName ( o ) + " to a XML Text Array" ) ; } }
target:  casts a value to a XML Text Array