Questions tagged [query-by-example]

97 questions
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Error while trying to inject ExampleMatcher

I'm using Query by Example to implement a number of complex filters in my Spring Boot application. I use an ExampleMatcher to define how the String properties must be handled. So I have a code similar to the one bellow in several different…
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Real use cases / examples to show the need to query on predicate in a dataset

I would like to ask your insights about the real world use cases or examples that why we need to query on predicate in a dataset without specifying other elements (e.g., the value of subjet, the value of object) in the query. The objective is to…
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Spring+boot+data - query by Example having association return Page

I have an Employee entity class with Job entity mapped. In a controller I want to return all employees who have the job with the given Job description. How i do it? Currently my code returns empty list. here is my code public class Employee { …
Alex
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Does Hibernate query-by-example ignores restrictions which require a join?

I have a relationship between a Parent(@OneToMany mappedBy) and its Children(@ManyToOne). When I use try to use QBE to retrieve the Child(ren) based upon the Parent(s) I always get back the full list of Child(ren). I've attached the sources for a…
Pooh
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confusion with example explanation of Prototype pattern in c++

Some one posted the questions about this pattern but not having the solution of the question raised in my mind so posting with the queries i have... In above example if all the instance are initialized by s_prototypes variable, and next time if any…
ssg
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Hibernate- Disjunction with criterion.Example in QBE

I want to search my database with a criterion.Example on multiple fields, OR'd together. That is, I want to retrieve records in which "field1" is an example of my search object OR "field2" is an example of my search object, where field1 and field2…
DFL
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ios Custom annotation view using storyboard in MapKit

I'm trying to add a custom annotation view in mapkit . When I tap on red annotation pin , I got an annotation callout,but it is very simple.I want to add a custom view which I have made in the storyboard. Can you please provide me a video or text…
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delta_import from MongoDB to SOLR in Windows

I am new to SOLR & successfully managed to made full-import from mongoDB to SOLR in windows but when i tried to perform delta-import it was not done and there is no log information also found can any suggest me to complete delta import from mongoDB…
skckhan
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Hibernate Criteria by Examle

I am trying to create Criteria by an Example. But I am getting the same results for the different Example objects. Author author = new Author(); author.setId(3L); News news = new News(); news.setAuthor(author); List newsList =…
Nox
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Using disjunction on a QBE

Is it possible to use disjunction on criteria Example? I've tried to use Example to filter some data. Criteria critFatura = ((Session)em.getDelegate()).createCriteria(Fatura.class); …
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Hibernate QBE doesn't work as expected

Here is the method I wrote public static List selectOnCriteria(SessionFactory sessionFactory, int maxResults, T model) { List resultList=null; session=sessionFactory.openSession(); …
Dipanshu Verma
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Applying multiple "or" filters using Query by Example

I'm trying to retrieve a set of records from Active Directory using Query by Example. This snippet will find any records with the name of "John Smith": PrincipalContext context = new PrincipalContext(ContextType.Domain, contextName); User filter =…
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How to get following result for my SQL?

My Employee Table EMPLOYEEID, EMPLOYEENAME My CallReportEmployee Table ReportID, EMPLOYEEID My Report Table ReportID , ReportName When I want to get is I want to show all the employee name, when those didnt choose ReportID 1 1 report can consist…
Ryan
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How to get all word permutaions using hibernate?

I want to create a hibernate query using hql or criteria to get all permutations of a word, for the word elepahant i want to get: eliphant ilephant iliphant elefant at first i assumed that "%" + "elepahant" + "%" could do the work but in fact it…
Eslam Hamdy
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NHibernate - Query by Example - Subquery

I know there are MANY ways to achieve the following in NHibernate - i am not interested in other scenarios. What I am wondering is if it is possible to automatically generate a subquery using a many-to-one relationship and a query by example in…
Jason Irwin
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