HaveDaemon (Daemon property): Difference between revisions
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{{Template:Daemon:HaveDaemon subtitle}} | {{Template:Daemon:HaveDaemon subtitle}} | ||
<var>HaveDaemon</var> returns a <var>[[Boolean enumeration]]</var> that indicates whether the daemon thread associated with the <var>[[Daemon class|Daemon]]</var> method object is accessible. | |||
HaveDaemon | |||
==Syntax== | ==Syntax== | ||
| Line 10: | Line 6: | ||
===Syntax terms=== | ===Syntax terms=== | ||
<table class="syntaxTable"> | <table class="syntaxTable"> | ||
<tr><th>% | <tr><th>%boolean</th> | ||
<td>A | <td>A <var>Boolean</var> enumeration to contain the returned value of <var>HaveDaemon</var>. | ||
<tr><th> | <p><var>HaveDaemon</var> returns <code>True</code> unless the daemon thread logged off, for whatever reason.</p> </td></tr> | ||
<td>A | <tr><th>daemon</th> | ||
<td>A <var>Daemon</var> object.</td></tr> | |||
</table> | </table> | ||
%list = new | ==Examples== | ||
text to %list | In the following example, a global daemon updates an XML document, then <var>HaveDaemon</var> verifies the continued existence of the daemon. | ||
<p class="code">begin | |||
%doc is object xmlDoc | %speed is object daemon global | ||
%(daemon):getInputObject(%doc) | %list is object stringList | ||
%doc:selectSingleNode('/out/in'):addAttribute('foo','bar') | %tiny is object xmlDoc | ||
%(daemon):returnObject(%doc) | %bool is enumeration boolean | ||
end | %speed = new | ||
end text | %speed:run('*LOWER') | ||
%list = new | |||
text to %list | |||
begin | |||
%doc is object xmlDoc | |||
%(daemon):getInputObject(%doc) | |||
%doc:selectSingleNode('/out/in'):addAttribute('foo','bar') | |||
%(daemon):returnObject(%doc) | |||
end | |||
end text | |||
%tiny = new | %tiny = new | ||
%tiny:loadXml('<out><in></in></out>') | %tiny:loadXml('<out><in></in></out>') | ||
%speed:run(%list, %tiny, %tiny) | %speed:run(%list, %tiny, %tiny) | ||
%tiny:print | %tiny:print | ||
%bool = %speed:havedaemon | %bool = %speed:havedaemon | ||
print '%bool is ' %bool:tostring | |||
end | end | ||
</ | </p> | ||
The example above returns this result: | The example above returns this result: | ||
<p class="code"><out><in foo="bar"/></out>%bool is True | |||
< | </p> | ||
<out><in foo="bar"/></out>%bool is True | |||
</ | |||
==See also== | ==See also== | ||
{{Template:Daemon:HaveDaemon footer}} | {{Template:Daemon:HaveDaemon footer}} | ||
Latest revision as of 02:14, 8 July 2012
Is the thread associated with this Daemon accessible? (Daemon class)
HaveDaemon returns a Boolean enumeration that indicates whether the daemon thread associated with the Daemon method object is accessible.
Syntax
%boolean = daemon:HaveDaemon
Syntax terms
| %boolean | A Boolean enumeration to contain the returned value of HaveDaemon.
HaveDaemon returns |
|---|---|
| daemon | A Daemon object. |
Examples
In the following example, a global daemon updates an XML document, then HaveDaemon verifies the continued existence of the daemon.
begin %speed is object daemon global %list is object stringList %tiny is object xmlDoc %bool is enumeration boolean %speed = new %speed:run('*LOWER') %list = new text to %list begin %doc is object xmlDoc %(daemon):getInputObject(%doc) %doc:selectSingleNode('/out/in'):addAttribute('foo','bar') %(daemon):returnObject(%doc) end end text %tiny = new %tiny:loadXml('<out><in></in></out>') %speed:run(%list, %tiny, %tiny) %tiny:print %bool = %speed:havedaemon print '%bool is ' %bool:tostring end
The example above returns this result:
<out><in foo="bar"/></out>%bool is True