Examples with Expression org.immutables.criteria.expression.Expression used on opensource projects

Example 21 with Expression

use of org.immutables.criteria.expression.Expression in project immutables by immutables.

the class CriteriaContext method appendPath.

/**
 *  adds an intermediate path to partial expression
 */
public <T> CriteriaContext appendPath(Class<?> type, String pathAsString, CriteriaCreator<T> creator) {
    final Member member = memberLookup.find(type, pathAsString).orElseThrow(() -> new IllegalArgumentException(String.format("Path %s not found in %s", pathAsString, type)));
    Path newPath;
    Expression partial = state.partial();
    if (partial == null) {
        newPath = Path.ofMember(member);
    } else if (partial instanceof Path) {
        newPath = Visitors.toPath(partial).append(member);
    } else {
        throw new IllegalStateException("Partial expression is not a path: " + partial);
    }
    return new CriteriaContext(this, state.withPartial(newPath).withCreator(creator));
}

Example 22 with Expression

use of org.immutables.criteria.expression.Expression in project immutables by immutables.

the class AsyncReader method select.

public AsyncMapperTuple.DistinctLimitOffset select(Iterable<Projection<?>> projections) {
    Objects.requireNonNull(projections, "projections");
    Preconditions.checkArgument(!Iterables.isEmpty(projections), "empty projections");
    List<Expression> expressions = StreamSupport.stream(projections.spliterator(), false).map(Matchers::toExpression).collect(Collectors.toList());
    Query newQuery = this.query.addProjections(expressions);
    return new AsyncMappers.MapperTuple(newQuery, session);
}

Example 23 with Expression

use of org.immutables.criteria.expression.Expression in project immutables by immutables.

the class Matchers method combine.

static <R extends Criterion<?>> R combine(R left, R right, Operator operator) {
    Preconditions.checkArgument(operator == Operators.AND || operator == Operators.OR, "Invalid operator %s", operator);
    CriteriaContext context = extract(left);
    Expression leftExpression = context.expression();
    Expression rightExpression = extract(right).expression();
    Combiner combiner = operator == Operators.AND ? Combiner.and() : Combiner.or();
    Expression expression = combiner.combine(leftExpression, rightExpression);
    CriteriaCreator<R> creator = context.creator();
    ImmutableState state = context.state();
    return creator.create(new CriteriaContext(null, state.withCurrent(expression).withPartial(state.defaultPartial())));
}

Example 24 with Expression

use of org.immutables.criteria.expression.Expression in project immutables by immutables.

the class RxJavaReader method select.

public RxJavaMapperTuple select(Iterable<Projection<?>> projections) {
    Objects.requireNonNull(projections, "projections");
    Preconditions.checkArgument(!Iterables.isEmpty(projections), "empty projections");
    List<Expression> expressions = StreamSupport.stream(projections.spliterator(), false).map(Matchers::toExpression).collect(Collectors.toList());
    Query newQuery = this.query.addProjections(expressions);
    return new RxJavaMappers.MapperTuple(newQuery, session);
}

Example 25 with Expression

use of org.immutables.criteria.expression.Expression in project immutables by immutables.

the class AggregationExpressionTest method assertProjection.

private static void assertProjection(Aggregation<?> aggregation, String... expectedLines) {
    Expression expression = Matchers.toExpression(aggregation);
    String out = expression.accept(new DebugExpressionVisitor<>(new StringBuilder())).toString();
    final String expected = Arrays.stream(expectedLines).collect(Collectors.joining(System.lineSeparator()));
    Assertions.assertEquals(expected, out.trim());
}