Method: setExpressionToQuery(StringBuilder, CriteriaParameterFiller)

1: /*
2: * JOPA
3: * Copyright (C) 2024 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.expressions;
19:
20: import cz.cvut.kbss.jopa.query.criteria.CriteriaParameterFiller;
21: import cz.cvut.kbss.jopa.model.query.criteria.CriteriaBuilder;
22:
23: public abstract class AbstractComparisonExpression extends AbstractExpression<Boolean> {
24:
25: protected AbstractExpression<?> right;
26: protected AbstractExpression<?> left;
27:
28: public AbstractComparisonExpression(AbstractExpression<?> left, AbstractExpression<?> right, CriteriaBuilder cb) {
29: super(Boolean.class, cb);
30: this.left = left;
31: this.right = right;
32: }
33:
34: @Override
35: public void setExpressionToQuery(StringBuilder query, CriteriaParameterFiller parameterFiller) {
36: this.left.setExpressionToQuery(query, parameterFiller);
37: query.append(this.getComparisonOperator());
38: this.right.setExpressionToQuery(query, parameterFiller);
39: }
40:
41: protected abstract String getComparisonOperator();
42: }
43:
44: