Examples with DbmsFeatures io.jmix.data.persistence.DbmsFeatures used on opensource projects

Example 1 with DbmsFeatures

use of io.jmix.data.persistence.DbmsFeatures in project jmix by jmix-framework.

the class JmixEclipseLinkQuery method internalSetParameter.

private TypedQuery<E> internalSetParameter(int position, Object value) {
    checkState();
    DbmsFeatures dbmsFeatures = dbmsSpecifics.getDbmsFeatures();
    if (isNative && (value instanceof UUID) && (dbmsFeatures.getUuidTypeClassName() != null)) {
        Class<?> c = ReflectionHelper.getClass(dbmsFeatures.getUuidTypeClassName());
        try {
            value = ReflectionHelper.newInstance(c, value);
        } catch (NoSuchMethodException e) {
            throw new RuntimeException("Error setting parameter value", e);
        }
    } else if (value instanceof EnumClass) {
        value = ((EnumClass) value).getId();
    } else if (isCollectionOfEntitiesOrEnums(value)) {
        value = convertToCollectionOfIds(value);
    }
    params.add(new Param(position, value));
    return this;
}

Example 2 with DbmsFeatures

use of io.jmix.data.persistence.DbmsFeatures in project jmix by jmix-framework.

the class JmixEclipseLinkQuery method transformQueryString.

private String transformQueryString() {
    String result = replaceConstants(queryString);
    result = expandMacros(result);
    boolean rebuildParser = false;
    QueryParser parser = queryTransformerFactory.parser(result);
    String entityName = parser.getEntityName();
    Class effectiveClass = extendedEntities.getEffectiveClass(entityName);
    MetaClass effectiveMetaClass = metadata.getClass(effectiveClass);
    String effectiveEntityName = effectiveMetaClass.getName();
    if (!effectiveEntityName.equals(entityName)) {
        QueryTransformer transformer = queryTransformerFactory.transformer(result);
        transformer.replaceEntityName(effectiveEntityName);
        result = transformer.getResult();
        rebuildParser = true;
    }
    if (firstResult != null && firstResult > 0) {
        String storeName = effectiveMetaClass.getStore().getName();
        DbmsFeatures dbmsFeatures = dbmsSpecifics.getDbmsFeatures(storeName);
        if (dbmsFeatures.useOrderByForPaging()) {
            QueryTransformer transformer = queryTransformerFactory.transformer(result);
            transformer.addOrderByIdIfNotExists(metadataTools.getPrimaryKeyName(effectiveMetaClass));
            result = transformer.getResult();
            rebuildParser = true;
        }
    }
    result = replaceParams(result, parser);
    if (rebuildParser) {
        parser = queryTransformerFactory.parser(result);
    }
    String nestedEntityName = parser.getOriginalEntityName();
    String nestedEntityPath = parser.getOriginalEntityPath();
    if (nestedEntityName != null) {
        if (parser.isCollectionOriginalEntitySelect()) {
            throw new IllegalStateException(String.format("Collection attributes are not supported in select clause: %s", nestedEntityPath));
        }
        if (!metadataTools.isJpaEmbeddable(metadata.getClass(nestedEntityName))) {
            QueryTransformer transformer = queryTransformerFactory.transformer(result);
            transformer.replaceWithSelectEntityVariable("tempEntityAlias");
            transformer.addFirstSelectionSource(String.format("%s tempEntityAlias", nestedEntityName));
            MetaClass nestedMetaClass = metadata.getSession().getClass(nestedEntityName);
            if (nestedMetaClass != null) {
                addIdConditions(nestedMetaClass, nestedEntityPath, transformer);
            } else {
                log.info("MetaClass {} that is necessary for building JPQL query is not found", nestedMetaClass);
            }
            transformer.addEntityInGroupBy("tempEntityAlias");
            result = transformer.getResult();
        }
    }
    result = replaceIsNullAndIsNotNullStatements(result);
    return result;
}