Examples with SqmExtractUnit org.hibernate.query.sqm.tree.expression.SqmExtractUnit used on opensource projects

Example 1 with SqmExtractUnit

use of org.hibernate.query.sqm.tree.expression.SqmExtractUnit in project hibernate-orm by hibernate.

the class SemanticQueryBuilder method visitGenericFunctionArguments.

@Override
public List<SqmTypedNode<?>> visitGenericFunctionArguments(HqlParser.GenericFunctionArgumentsContext ctx) {
    final int size = ctx.getChildCount();
    final int lastIndex = size - 1;
    // Shift 1 bit instead of division by 2
    final int estimateArgumentCount = size >> 1;
    final List<SqmTypedNode<?>> arguments = new ArrayList<>(estimateArgumentCount);
    int i = 0;
    boolean distinct = false;
    final ParseTree firstChild = ctx.getChild(0);
    if (firstChild instanceof HqlParser.DatetimeFieldContext) {
        arguments.add(toDurationUnit((SqmExtractUnit<?>) firstChild.accept(this)));
        i += 2;
    } else if (firstChild instanceof TerminalNode) {
        distinct = true;
        i++;
    }
    for (; i < size; i += 2) {
        // we handle the final argument differently...
        if (i == lastIndex) {
            arguments.add(visitFinalFunctionArgument(ctx.getChild(i)));
        } else {
            arguments.add((SqmTypedNode<?>) ctx.getChild(i).accept(this));
        }
    }
    if (distinct) {
        final NodeBuilder nodeBuilder = getCreationContext().getNodeBuilder();
        if (arguments.size() == 1) {
            arguments.set(0, new SqmDistinct<>((SqmExpression<?>) arguments.get(0), nodeBuilder));
        } else {
            final List<SqmTypedNode<?>> newArguments = new ArrayList<>(1);
            // noinspection unchecked
            newArguments.add(new SqmDistinct<>(new SqmTuple<>((List<SqmExpression<?>>) (List<?>) arguments, nodeBuilder), nodeBuilder));
            return newArguments;
        }
    }
    return arguments;
}

Example 2 with SqmExtractUnit

use of org.hibernate.query.sqm.tree.expression.SqmExtractUnit in project hibernate-orm by hibernate.

the class ArgumentTypesValidator method validate.

/**
 * We do an initial validation phase with just the SQM tree, even though we don't
 * have all typing information available here (in particular, we don't have the
 * final JDBC type codes for things with converters) because this is the phase
 * that is run at startup for named queries, and can be done in an IDE.
 */
@Override
public void validate(List<? extends SqmTypedNode<?>> arguments, String functionName, QueryEngine queryEngine) {
    delegate.validate(arguments, functionName, queryEngine);
    int count = 0;
    for (SqmTypedNode<?> argument : arguments) {
        JdbcTypeIndicators indicators = queryEngine.getTypeConfiguration().getCurrentBaseSqlTypeIndicators();
        SqmExpressible<?> nodeType = argument.getNodeType();
        FunctionParameterType type = count < types.length ? types[count++] : types[types.length - 1];
        if (nodeType != null) {
            JavaType<?> javaType = nodeType.getExpressibleJavaType();
            if (javaType != null) {
                try {
                    JdbcType jdbcType = javaType.getRecommendedJdbcType(indicators);
                    checkType(count, functionName, type, jdbcType.getJdbcTypeCode(), javaType.getJavaTypeClass());
                } catch (JdbcTypeRecommendationException e) {
                // it's a converter or something like that, and we will check it later
                }
            }
            switch(type) {
                case TEMPORAL_UNIT:
                    if (!(argument instanceof SqmExtractUnit) && !(argument instanceof SqmDurationUnit)) {
                        throwError(type, Object.class, functionName, count);
                    }
                    break;
                // something crazy by the parser
                case TRIM_SPEC:
                    if (!(argument instanceof SqmTrimSpecification)) {
                        throwError(type, Object.class, functionName, count);
                    }
                    break;
                case COLLATION:
                    if (!(argument instanceof SqmCollation)) {
                        throwError(type, Object.class, functionName, count);
                    }
                    break;
            }
        } else {
        // TODO: appropriate error?
        }
    }
}