hibernate - Querying through JPA -


i have question in fetching data through jpa,

lets have entity , entity having onetoone relationship onetomany other related entities.

is there api in hibernate or jpa in if set few values entity class , related entity class , list of entity class matching values.

eg:

entity e = new entity(); e.setvar1("test1"); e.setvar2("test2");  siblingentity se = new siblingentity(); // onetoone entity class se.setvar1("var1");  e.setsiblingentity(se);  childentity ce = new childentity(); // onetomany entity class ce.setvar1("value1");  e.getchildentities().add(ce);

now have root entity e sibling entity , child entity.

is there api give me following result? 1 mentioned below:

list elist = entitydao.getentitylist(e);

elist has contain list of entity class satisfies conditions mentioned above.

thanks

you want kind of query example, don't know framework capable jpa, jql can expressed quite straightforward assignments:

entitymanager.createquery(    "select e entity e e.var1 = 'test1'      , e.var2 = 'test2' , e.siblingentity.var1 = 'var1'      , e.childentity.var1 = 'value1'").getresultlist();

should deliver want, if entity relations defined correctly.

searching qbe , jpa found following link:

hibernate-query-example-qbe

perhaps according intentions.


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