How to build Query object with jql function cascadeOption

[Vijaya Kumar Reddy Chinnam]

Hello,

We are developing a JIRA plugin. There, we need to create Query object on cascadeOption() to search using SearchService. 

How can we use JqlQueryBuilder, JqlClauseBuilder, ConditionBuilder   or any other API, to achieve this?

Can anyone help?

Thanks in advance,

Vijay