Author |
Boris Capitanu |
Creation date |
06/06/2011 |
Firing policy |
all |
Package |
org.seasr.meandre.components.tools.control |
DESCRIPTION
This component counts the number of data objects passing through it and outputs the current count. If the component is set to act on a particular stream (by setting 'streamId' appropriately) then at the end of the stream the component will output a total count of all elements in that stream.
INPUTS
Name |
Description |
Example |
|---|---|---|
object |
The object TYPE: java.lang.Object |
|
OUTPUTS
Name |
Description |
Example |
|---|---|---|
current_count |
The current count (pushed for each stream item) TYPE: org.seasr.datatypes.BasicDataTypes.Strings |
|
error |
This port is used to output any unhandled errors encountered during the execution of this component |
|
total_count |
The total count (pushed once per stream) TYPE: org.seasr.datatypes.BasicDataTypes.Strings |
|
object |
The same object received as input TYPE: java.lang.Object |
|
PROPERTIES
Name |
Description |
Default value |
|---|---|---|
_debug_level |
Controls the verbosity of debug messages printed by the component during execution. Possible values are: off, severe, warning, info, config, fine, finer, finest, all Append ',mirror' to any of the values above to mirror that output to the server logs. |
info |
_stream_id |
Defines the stream id used to identify a particular stream of data |
|
_ignore_errors |
Set to 'true' to ignore all unhandled exceptions and prevent the flow from being terminated. Setting this property to 'false' will result in the flow being terminated in the event an unhandled exception is thrown during the execution of this component |
false |
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