JAVACODE FUNCTION PROVIDED I/O HOOKS (BOZZA)
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This advanced [I/O Channel] to get its I/O hooks
from a [JavaCode function] that will decide which
tag (for instance based according to the tag class)
will be bound to which device item and if in
read/write only mode. The [JavaCode function] must
accept an unique parameter: ChannelInfo ch And must
return an Iterable object. Its signature should be:
Iterable functionName ( ChannelInfo ch ) throws
JException; The [JavaCode function] can determine
which tag to include be enumerating the tags that
belong to a certain [tag class]. The following
example provides MQTT I/O hook for the tag of [tag
class] named /device/onoff: final Vector v = new
Vector<>(); for( final TagRef tag : getTagClass(
"/device/onoff" ).tags() ) { v.add( new
IOHookCodeCreatedInfo.N.Adapter( tag,
"/JSupTest/device/onoff/"+tag.getName(), true,
false, null, null, false ) ); } An [I/O Channel]
can have both [I/O hooks] statically entered in the
[tag dialog] and JavaCode function provided ones.
The name of the [JavaCode function] that will
provide [I/O hooks] to a channel have to be
specified in the Auto I/O hook JavaCode fun: in the
[I/O channel dialog] dialog.