structure-query-constraint

Structure Query Constraint module allows you to define an additional constraint function that can be used in S-JQL.

For example, folder() function explained in S-JQL Reference is implemented with a structure-query-constraint.

Example:

<structure-query-constraint key="constraint-foo"
                            class="com.mycompany.structure.FooConstraint"
                            name="Structure Query Constraint: foo"
                            fname="foo"/>

Element	Required?	Description
`key`	Yes	Module key.
`name`	No	Module name for the JIRA administrator.
`class`	Yes	Class that implements StructureQueryConstraint.
`fname`	Yes	Function name, must be unique throughout the system.