Pro JPA 2 in Java EE 8 by Mike Keith Merrick Schincariol & Massimo Nardone

Author:Mike Keith, Merrick Schincariol & Massimo Nardone
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

query.append("WHERE");

List<String> criteria = new ArrayList<String>();

if (name != null) { criteria.add("e.name = :name"); }

if (deptName != null) { criteria.add("e.dept.name = :dept"); }

if (projectName != null) { criteria.add("p.name = :project"); }

if (city != null) { criteria.add("e.address.city = :city"); }

if (criteria.size() == 0) {

throw new RuntimeException("no criteria");

}

for (int i = 0; i < criteria.size(); i++) {

if (i > 0) { query.append("AND"); }

query.append(criteria.get(i));

}

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