SimpleGather

Short Description
Ports
Metadata
Details
Compatibility
See also

Short Description

SimpleGather gathers data records from multiple inputs. The order of output records is unpredictable.

Component Same input metadata Sorted inputs Inputs Outputs Java CTL Auto-propagated metadata
SimpleGather
yes
no
1-n1-n
no
no
yes

Ports

Port typeNumberRequiredDescriptionMetadata
Input0
yes
For input data recordsAny
1-n
no
For input data recordsInput 0
Output0
yes
For gathered data recordsInput 0
1-n
no
For gathered data recordsInput 0

At least one connected input port and at least one connected output port are required.

Metadata

SimpleGather propagates metadata in both directions. SimpleGather does not change metadata priorities.

SimpleGather has no metadata template.

Input ports must have the same metadata. Metadata name and field names may differ but the field datatypes must correspond to each other.

Output ports must have the same metadata. Metadata name and field names may differ but the field datatypes must correspond to each other.

Details

The order of output records is unpredictable. Only the order of records coming from the single port is preserved.

SimpleGather receives data records through one or more input ports. SimpleGather gathers (demultiplexes) all records as fast as possible and sends them all to all output ports.

SimpleGather

Figure 57.5. SimpleGather


If you need a component merging input records and preserving the order, use Concatenate or Merge.

Compatibility

VersionCompatibility Notice
4.1.0-M1

Until 4.0.x, you could disable only the last input or output port(s) of SimpleGather; e.g. you could disable the third and fourth input port, but you not the first one.

Since 4.1.0-M1, you can disable any input port or any output port provided there is at least one input port and at least one output port.

See also

Concatenate
Merge
SimpleCopy
ParallelSimpleGather
Common Properties of Components
Specific Attribute Types
Common Properties of Transformers
Transformers Comparison