Method iter

basex-core/src/main/java/org/basex/query/expr/Expr.java:67–67

Evaluates the expression and returns an iterator on the resulting items. If this method is not implemented, either #value(QueryContext) or #item(QueryContext, InputInfo) must be implemented instead. @param qc query context @return iterator @throws QueryException query exception

(QueryContext qc)

   * @throws QueryException query exception
   */
  public abstract Iter iter(QueryContext qc) throws QueryException;

  /**
   * Evaluates the expression and returns the resulting value.