Writing a workflow validator

Workflow validators are specific validators that check whether some predefined constraints are satisfied or not while progressing on a workflow. The constraints are configured in the workflow and the user will get an error if some of them are not satisfied. A typical example would be to check if a particular field is present or not before the issue is moved to a different status.

Workflow validators are created with the help of the workflow-validator module. The following are the key attributes and elements supported:

Attributes:

Name	Description
key	This should be unique within the plugin.
class	Class to provide contexts for rendered velocity templates. It must implement the com.atlassian.jira.plugin.workflow.WorkflowPluginValidatorFactory interface.
i18n-name-key	The localization key for the human-readable name of the plugin module.
name	Human-readable name of the workflow validator.

Elements:

Name	Description
description	Description of the workflow...