How Bag Works

Bag works by utilizing pipelines to process the input and output data.

There are four pipelines:

• InputPipeline for handling input and constructing the Bag object
• ValidationPipeline for validating without constructing the Bag object
• OutputPipeline for handling output
• OutputCollectionPipeline for handling collection output

Each pipeline is detailed below.

TIP

Each stage in the diagrams below is linked to the relevant source code for that stage.

The Input Pipeline

The InputPipeline is responsible for processing the input data so that the Bag object can be created. The pipeline consists of the following steps:

The Output Pipeline

The OutputPipeline is responsible transforming the Bag data to the desired output array or JSON. The pipeline consists of the following steps:

NOTE

* These steps are only performed if the Bag is being converted to an array and/or JSON.

The Validation Pipeline

The ValidationPipeline is responsible for validating the input data without constructing the Bag object. The pipeline consists of the following steps:

The Output Collection Pipeline

The OutputCollectionPipeline is responsible for transforming the Bag collection data to the desired output array or JSON. The pipeline consists of the following steps:

NOTE

* This step is only performed if the Bag is being converted to an array and/or JSON.