Examples with UnknownEntityNameException com.haulmont.cuba.core.sys.jpql.UnknownEntityNameException used on opensource projects

Example 1 with UnknownEntityNameException

use of com.haulmont.cuba.core.sys.jpql.UnknownEntityNameException in project cuba by cuba-platform.

the class EntityPointer method next.

@Override
public Pointer next(DomainModel model, String field) {
    Attribute attribute = entity.getAttributeByName(field);
    if (attribute == null) {
        return NoPointer.instance();
    }
    if (!attribute.isEntityReferenceAttribute()) {
        return new SimpleAttributePointer(entity, attribute);
    }
    String targetEntityName = attribute.getReferencedEntityName();
    try {
        JpqlEntityModel targetEntity = model.getEntityByName(targetEntityName);
        return attribute.isCollection() ? new CollectionPointer(targetEntity) : new EntityPointer(targetEntity);
    } catch (UnknownEntityNameException e) {
        return NoPointer.instance();
    }
}

Example 2 with UnknownEntityNameException

use of com.haulmont.cuba.core.sys.jpql.UnknownEntityNameException in project cuba by cuba-platform.

the class QueryTreeTransformer method getPathNodesForOrderBy.

protected List<PathNode> getPathNodesForOrderBy(PathEntityReference pathEntityReference) {
    List<PathNode> pathNodes = new ArrayList<>();
    String entityName = pathEntityReference.getPathStartingEntityName();
    PathNode pathNode = pathEntityReference.getPathNode();
    try {
        JpqlEntityModel entity = model.getEntityByName(entityName);
        String currentVariableName = pathNode.getEntityVariableName();
        PathNode currentPathNode = new PathNode(pathNode.getToken(), currentVariableName);
        for (int i = 0; i < pathNode.getChildCount(); i++) {
            String fieldName = pathNode.getChild(i).toString();
            Attribute entityAttribute = entity.getAttributeByName(fieldName);
            if (entityAttribute.isEntityReferenceAttribute() && !entityAttribute.isEmbedded()) {
                currentPathNode.addDefaultChild(fieldName);
                pathNodes.add(currentPathNode);
                currentVariableName = currentPathNode.asPathString('_');
                currentPathNode = new PathNode(pathNode.getToken(), currentVariableName);
            } else {
                currentPathNode.addDefaultChild(fieldName);
            }
            if (entityAttribute.isEntityReferenceAttribute()) {
                entityName = entityAttribute.getReferencedEntityName();
                entity = model.getEntityByName(entityName);
            }
        }
        pathNodes.add(currentPathNode);
    } catch (UnknownEntityNameException e) {
        throw new RuntimeException(String.format("Could not find entity by name %s", entityName), e);
    }
    return pathNodes;
}

Example 3 with UnknownEntityNameException

use of com.haulmont.cuba.core.sys.jpql.UnknownEntityNameException in project cuba by cuba-platform.

the class BaseJoinNode method identifyVariableEntity.

public void identifyVariableEntity(DomainModel model, Deque<QueryVariableContext> stack, List<ErrorRec> invalidNodes) {
    String variableName = getVariableName();
    if (variableName == null) {
        invalidNodes.add(new ErrorRec(this, "No variable name found"));
        return;
    }
    List children = getChildren();
    if (children == null || children.size() == 0) {
        invalidNodes.add(new ErrorRec(this, "No children found"));
        return;
    }
    CommonTree child0 = (CommonTree) children.get(0);
    if (child0 instanceof CommonErrorNode) {
        invalidNodes.add(new ErrorRec(this, "Child 0 is an error node"));
        return;
    }
    QueryVariableContext queryVC = stack.peekLast();
    if (child0 instanceof PathNode) {
        PathNode pathNode = (PathNode) child0;
        Pointer pointer = pathNode.resolvePointer(model, queryVC);
        if (pointer instanceof NoPointer) {
            invalidNodes.add(new ErrorRec(this, "Cannot resolve joined entity"));
        } else if (pointer instanceof SimpleAttributePointer) {
            invalidNodes.add(new ErrorRec(this, "Joined entity resolved to a non-entity attribute"));
        } else if (pointer instanceof EntityPointer) {
            queryVC.addEntityVariable(variableName, ((EntityPointer) pointer).getEntity());
        } else if (pointer instanceof CollectionPointer) {
            queryVC.addEntityVariable(variableName, ((CollectionPointer) pointer).getEntity());
        } else {
            invalidNodes.add(new ErrorRec(this, "Unexpected pointer variable type: " + pointer.getClass()));
        }
    } else {
        // this special case is for "join X on X.a = Y.b" query. Entity name would be just text in the child node
        try {
            queryVC.addEntityVariable(variableName, model.getEntityByName(child0.getText()));
        } catch (UnknownEntityNameException e) {
            invalidNodes.add(new ErrorRec(this, "Could not find entity for name " + child0.getText()));
        }
    }
}