001package org.kuali.coeus.propdev.api.s2s;
002
003
004public interface S2sOpportunityService {
005
006    /**
007     * This method retrieves and S2S Opportunity by proposal number. The proposal number cannot be blank.
008     * Will return null if non is found.
009     *
010     * @param proposalNumber the proposal number.  Cannot be blank.
011     * @return the S2sOpportunity or null.
012     * @throws java.lang.IllegalArgumentException if proposal number is blank
013     */
014    S2sOpportunityContract findS2SOpportunityByProposalNumber(String proposalNumber);
015}