Method exists

basex-core/src/main/java/org/basex/core/Sandbox.java:361–363

Returns a test to check if the specified expression or path occurs in the query plan. @param expr expression @return test string

(final String expr)

   * @return test string
   */
  protected static String exists(final String expr) {
    return "exists(//" + expr + ')';
  }

  /**
   * Returns a test to check if the specified expression occurs in the query plan.