exists

Index > Books > Declarative Development Guide > Reference Library > Accessor Listing > exists

Module

urn:org:ten60:netkernel:ext:sys

Definition

Active URI Base

active:exists

Format

<instr>
  <type>exists</type>
  <operand>
    <uri>file:/a.xml</uri>
  </operand>
  <target>var:result</target>
</instr>

Syntax

Argument	Rules	Description
type	Mandatory	exists
operand	Mandatory	the resource to test.
target	Mandatory	returns a boolean.

Checks for the existence of a resource with a given URI.

Data Accessors that currently support exists are file:, and ffcpl:.

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