Examples with ParameterExpressionImpl org.hibernate.query.criteria.internal.expression.ParameterExpressionImpl used on opensource projects

Example 1 with ParameterExpressionImpl

use of org.hibernate.query.criteria.internal.expression.ParameterExpressionImpl in project hibernate-orm by hibernate.

the class InPredicate method render.

@Override
public String render(boolean isNegated, RenderingContext renderingContext) {
    final StringBuilder buffer = new StringBuilder();
    final Expression exp = getExpression();
    if (ParameterExpressionImpl.class.isInstance(exp)) {
        // technically we only need to CAST (afaik) if expression and all values are parameters.
        // but checking for that condition could take long time on a lon value list
        final ParameterExpressionImpl parameterExpression = (ParameterExpressionImpl) exp;
        final SessionFactoryImplementor sfi = criteriaBuilder().getEntityManagerFactory().unwrap(SessionFactoryImplementor.class);
        final Type mappingType = sfi.getTypeResolver().heuristicType(parameterExpression.getParameterType().getName());
        buffer.append("cast(").append(parameterExpression.render(renderingContext)).append(" as ").append(mappingType.getName()).append(")");
    } else {
        buffer.append(((Renderable) getExpression()).render(renderingContext));
    }
    if (isNegated) {
        buffer.append(" not");
    }
    buffer.append(" in ");
    // subquery expressions are already wrapped in parenthesis, so we only need to
    // render the parenthesis here if the values represent an explicit value list
    boolean isInSubqueryPredicate = getValues().size() == 1 && Subquery.class.isInstance(getValues().get(0));
    if (isInSubqueryPredicate) {
        buffer.append(((Renderable) getValues().get(0)).render(renderingContext));
    } else {
        buffer.append('(');
        String sep = "";
        for (Expression value : getValues()) {
            buffer.append(sep).append(((Renderable) value).render(renderingContext));
            sep = ", ";
        }
        buffer.append(')');
    }
    return buffer.toString();
}