Method: getExpressions()

1: /*
2: * JOPA
3: * Copyright (C) 2023 Czech Technical University in Prague
4: *
5: * This library is free software; you can redistribute it and/or
6: * modify it under the terms of the GNU Lesser General Public
7: * License as published by the Free Software Foundation; either
8: * version 3.0 of the License, or (at your option) any later version.
9: *
10: * This library is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this library.
17: */
18: package cz.cvut.kbss.jopa.query.criteria;
19:
20: import cz.cvut.kbss.jopa.model.query.criteria.Expression;
21: import cz.cvut.kbss.jopa.model.query.criteria.Predicate;
22: import cz.cvut.kbss.jopa.query.criteria.expressions.AbstractExpression;
23: import cz.cvut.kbss.jopa.sessions.CriteriaBuilder;
24: import java.util.Collections;
25: import java.util.List;
26:
27: public class SimplePredicateImpl extends AbstractPredicate{
28:
29: protected Expression<Boolean> expression;
30:
31: public SimplePredicateImpl(BooleanOperator booleanOperator, Expression<Boolean> expression, CriteriaBuilder cb) {
32: super(booleanOperator, cb);
33: this.expression = expression;
34: }
35:
36:
37: public SimplePredicateImpl(Expression<Boolean> expression, CriteriaBuilder cb) {
38: super(BooleanOperator.AND, cb);
39: this.expression = expression;
40: }
41:
42: @Override
43: public List<Expression<Boolean>> getExpressions(){
44: return Collections.singletonList(expression);
45: }
46:
47: @Override
48: public BooleanOperator getOperator() {
49: return this.booleanOperator;
50: }
51:
52: @Override
53: public Predicate not() {
54: ((AbstractExpression)expression).negate();
55: super.negate();
56: return this;
57: }
58:
59: @Override
60: public void setExpressionToQuery(StringBuilder query, CriteriaParameterFiller parameterFiller) {
61: AbstractExpression abstractExpression = (AbstractExpression) expression;
62: abstractExpression.setExpressionToQuery(query, parameterFiller);
63: }
64:
65: @Override
66: public void negate(){
67: this.not();
68: }
69: }