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In this Article
Overview
Use this Snap to consolidate multiple input streams into a single output document, where each input stream is displayed as a a label containing the records that were received by that input view.
It is also important to note that this Snap does not complete executing until the execution of all upstream Snaps is done.
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Prerequisites
This Snap collects multiple input documents into a single output document; hence there are system memory limitations, and it should not be used for massive data propagation. If large amounts of data are required, offload your data before Snap execution. You can also write your data to a file or database; then, after Snap execution completes, you can use a Reader Snap (File Reader, S3 Reader, and so on) to read from the offloaded data source.
Limitations
This Snap does not have error views. If the Snap fails during validation or execution, documents are not passed through, and you receive an error message.
Support for Ultra Pipelines
Does not support Ultra Pipelines.
Snap Views
Type | Format | Number of Views | Examples of Compatible Upstream and Downstream Snaps | Description |
|---|---|---|---|---|
Input | Document |
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| One or more documents containing records that must be passed on to downstream Snaps for further processing. |
Output | Document |
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| A single document that contains all the records received from the various upstream Snaps. |
Error | Error handling is a generic way to handle errors without losing data or failing the Snap execution. You can handle the errors that the Snap might encounter when running the pipeline by choosing one of the following options from the When errors occur list under the Views tab:
Learn more about Error handling in Pipelines. | |||
Snap Settings
Asterisk ( * ): Indicates a mandatory field.
Suggestion icon (): Indicates a list that is dynamically populated based on the configuration.
Expression icon ( ): Indicates the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.
Add icon ( ): Indicates that you can add fields in the field set.
Remove icon ( ): Indicates that you can remove fields from the field set.
Field Name | Field Type | Description |
|---|---|---|
Label*
| String | The name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your pipeline. |
Ignore Empty Stream
Default Value: Deselected | Checkbox | Select this checkbox if you do not want this Snap to produce any output document. When you deselect this checkbox, the Snap writes an empty document to the output view. |
Output Document Content*
Default Value: All input documents | Dropdown list | Choose one of the following options to determine the content of the output document:
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Snap Execution
| Dropdown list | Select one of the following three modes in which the Snap executes:
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