ExampleFunction.groovy

package examples

import com.atlassian.crowd.embedded.api.User
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.jql.operand.QueryLiteral
import com.atlassian.jira.jql.query.QueryCreationContext
import com.atlassian.jira.util.MessageSet
import com.atlassian.query.clause.TerminalClause
import com.atlassian.query.operand.FunctionOperand
import com.onresolve.jira.groovy.jql.AbstractScriptedJqlFunction
import org.apache.lucene.index.Term
import org.apache.lucene.search.BooleanClause
import org.apache.lucene.search.BooleanQuery
import org.apache.lucene.search.Query
import org.apache.lucene.search.TermQuery

class ABC extends AbstractScriptedJqlFunction {

    def String subquery
    @Override
    MessageSet validate(User user, FunctionOperand operand, TerminalClause terminalClause) {
        def messageSet = super.validate(user, operand, terminalClause)
        subquery = operand.args[0]
        messageSet
    }

    Query getQuery(QueryCreationContext queryCreationContext, FunctionOperand operand, TerminalClause terminalClause) {
        def booleanQuery = new BooleanQuery()

	return booleanQuery
    }
}