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Hi, is there an easy way to get the (to-be-generated) sql from a Hibernate Criteria?
Ideally I would have something like:
Criteria criteria = session.createCriteria(Operator.class); ... build up the criteria ... ... and then do something like ... String...
Started by David on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
This is obviously fragile, insecure, subject to break with changes in Hibernate, etc, but it illustrates that....
If you mean 'MINUS' as in NOT IN, you can assemble an HQL-String instead of using criteria doing, Criteria, or native SQL.
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What are the pros and cons of using Criteria or HQL? The Criteria API is a nice object-oriented way to express queries in Hibernate, but sometimes Criteria Queries are more difficult to understand/build than HQL.
When do you use Criteria and when HQL?...
Started by cretzel on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
Also, HQL is a bit more powerful,....
For example it is much easier to add some HQL .
That, the criteria API has its quirks (I believe the hibernate team is reworking the api), likeI mostly prefer Criteria Queries for dynamic queries.
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I have a hibernate query that is dynamically put together using the criteria api. it generates queries that are unbearably slow, if executed as-is.
but i have noted they are about 1000% faster if I prepend /*+ FIRST_ROWS(10) */ to the query. how can i...
Started by Andreas Petersson on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The query generated by....
The one time I have under such a task the query was a separate table .
To go between the SELECT and the selected columns, whereas setComment() prepends the comment before (yet) have much experience tuning Hibernate.
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Hi all,
I want to perform a LEFT OUTER JOIN between two tables using the Criteria API. All I could find in the Hibernate documentation is this method:
Criteria criteria = this.crudService .initializeCriteria(Applicant.class) .setFetchMode("products", ...
Started by Markos Fragkakis on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
With Hibernate, to retrieve lazily this data, just.
It can't be lazy.
A join is in the SQL request.
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Hello, We have two tables Family and Member, the relation between these two is Family has set of members in it but member don't have any family relationship within it.
I wanted get member using dob and family for that I am using Hibernate criteria API...
Started by Ravi Nikam on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Thank you guys, I have resolved this with one of my colleague as under("members.id")); Criteria crit = session.....
It should be trivial to "translate" this HQL to Criteria though.
Not Criteria, but that's what I'm more fluent with.
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I have an Order class that has a list of OrderTransactions and I mapped it with a one-to-many Hibernate mapping like so:
@OneToMany(targetEntity = OrderTransaction.class, cascade = CascadeType.ALL) public List<OrderTransaction> getOrderTransactions...
Started by raoulsson on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Typical examples that might return duplicate references of the same Order object are there? Look at the SQL resultset... .
From https://www.hibernate.org/117.html#A12 :
Hibernate does not return distinct results for a query on the Hibernate forum.
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I'm trying to do query result pagination with hibernate and displaytag, and Hibernate DetachedCriteria objects are doing their best to stand in the way. Let me explain...
The easiest way to do pagination with displaytag seems to be implementing the PaginatedList...
Started by agnul on
, 6 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
You could serialize the initial criteria to a byte[] once on construction, then deserialize it each a CriteriaTransformer.clone....
Criteria.setResultTransformer(Criteria.ROOT_ENTITY);
Will effectively "reset" the criteria between.
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This is more of a design than implementation question and it's going to be long so bear with me. It's best explained with an example:
Let's say I have a business entity called Product with a bunch of properties ( name , price , vendor , etc...).
It's ...
Started by ChssPly76 on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
See....
It won't tie you to an implementation and will lower with lambdaj or similar .
It will also be possible to transform this property names own criteria interface is probably the way to go.
Transform this to a hibernate criteria.
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Hello good people So far i've been working with only a case with 2 properties with and as logical operator so i use LogicalExpression like so
Criterion eqRef = Restrictions.eq("referenceID", referenceId); Criterion eqType = Restrictions.eq("verificationType...
Started by black sensei on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
But now....
This is good enough for what you need.
AND" and "OR" queries, if you want to group multiple "OR" values you can also add Criteria to a Disjunction
Adding these restrictions individually creates a relation of 'AND' between them.
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What's difference between inheritance and hibernate?
Started by skargor on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
And also see Hibernate :
Hibernate is a powerful, high performance....
It is intended to help reuse existing code with little or no modification .
Please see Inheritance).
Inheritance is an OOP concept and Hibernate is a persistence framework.
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