Examples with Attribute javax.persistence.metamodel.Attribute used on opensource projects

Example 31 with Attribute

use of javax.persistence.metamodel.Attribute in project jo-client-platform by jo-source.

the class CriteriaQueryCreator method getJoinQueryPath.

private Path<?> getJoinQueryPath(final Root<?> bean, final String propertyName) {
    final QueryPath queryPath = getQueryPathAnno(bean, propertyName);
    if (queryPath != null) {
        Path<?> parentPath = bean;
        Type<?> type = bean.getModel();
        for (final String pathSegment : queryPath.path()) {
            final Attribute<?, ?> attribute;
            if (type != null && type instanceof ManagedType) {
                attribute = ((ManagedType<?>) type).getAttribute(pathSegment);
                type = getType(attribute);
            } else {
                attribute = null;
            }
            if (isJoinableType(attribute) && parentPath instanceof From) {
                final From<?, ?> from = (From<?, ?>) parentPath;
                parentPath = from.join(pathSegment, JoinType.LEFT);
            } else {
                parentPath = parentPath.get(pathSegment);
            }
        }
        return parentPath;
    } else if (IPropertyMap.class.isAssignableFrom(bean.getJavaType())) {
        final PropertyMapQueryPath propertyMapQueryPath = bean.getJavaType().getAnnotation(PropertyMapQueryPath.class);
        if (propertyMapQueryPath != null) {
            Path<?> parentPath = bean;
            Type<?> type = bean.getModel();
            for (final String pathSegment : propertyMapQueryPath.path()) {
                final Attribute<?, ?> attribute;
                if (type != null && type instanceof ManagedType) {
                    attribute = ((ManagedType<?>) type).getAttribute(pathSegment);
                    type = getType(attribute);
                } else {
                    attribute = null;
                }
                if (isJoinableType(attribute) && parentPath instanceof From) {
                    final From<?, ?> from = (From<?, ?>) parentPath;
                    parentPath = from.join(pathSegment, JoinType.LEFT);
                } else {
                    parentPath = parentPath.get(pathSegment);
                }
            }
            parentPath.alias(PROPERTY_MAP_JOIN_ALIAS);
            return parentPath.get(propertyMapQueryPath.valuePath());
        }
    }
    return null;
}