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ExpressionInImpl.java
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ExpressionInImpl.java
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package cz.cvut.kbss.jopa.query.criteria.expressions;
import cz.cvut.kbss.jopa.model.query.criteria.Expression;
import cz.cvut.kbss.jopa.model.query.criteria.Predicate;
import cz.cvut.kbss.jopa.sessions.PredicateFactory;
import cz.cvut.kbss.jopa.query.criteria.AbstractPredicate;
import cz.cvut.kbss.jopa.query.criteria.CriteriaParameterFiller;
import cz.cvut.kbss.jopa.sessions.CriteriaBuilder;
import java.util.ArrayList;
import java.util.List;
public class ExpressionInImpl<Y> extends AbstractPredicate implements PredicateFactory.In<Y> {
private Expression<Y> expression;
private List<Expression<? extends Y>> values;
public ExpressionInImpl(Expression<? extends Y> expression, CriteriaBuilder cb) {
super(BooleanOperator.AND, cb);
this.expression = (Expression<Y>) expression;
}
@Override
public Expression<Y> getExpression() {
return expression;
}
@Override
public PredicateFactory.In<Y> value(Y value) {
if (values == null) values = new ArrayList<>();
values.add(super.cb.literal(value));
return this;
}
@Override
public PredicateFactory.In<Y> value(Expression<? extends Y> value) {
if (values == null) values = new ArrayList<>();
values.add(value);
return this;
}
@Override
public Predicate not() {
super.negate();
return this;
}
@Override
public List<Expression<Boolean>> getExpressions() {
List<Expression<Boolean>> expressions = new ArrayList<>();
expressions.add(this);
return expressions;
}
@Override
public void setExpressionToQuery(StringBuilder query, CriteriaParameterFiller parameterFiller) {
((AbstractExpression) expression).setExpressionToQuery(query, parameterFiller);
query.append(negated ? " NOT IN(" : " IN(");
for (int i = 0; i < values.size(); i++) {
((AbstractExpression) values.get(i)).setExpressionToQuery(query, parameterFiller);
if (values.size() > 1 && (i + 1) != values.size()) query.append(", ");
}
query.append(")");
}
}