public void addProperty ( String name , String value ) { if ( name == null || name . trim ( ) . length ( ) == 0 ) { throw new IllegalArgumentException ( "A property name must be specified." ) ; } if ( value == null || value . trim ( ) . length ( ) == 0 ) { throw new IllegalArgumentException ( "A property value must be specified." ) ; } properties . put ( name , value ) ; }
Adds a name - value pair property to this element .