JPA Bi-directional parent-child relationship and repositories
I have a table called test_run. This table has an id called parent_run_id that references the parent test run (I have this because we rerun failed tests in their own run). This class works as desired, and returns both the parent and child run when I query for an id.
I want to find all the test runs without a child. This essentially means that I want the most recent test reruns, or the original if there is no rerun. However, the query that the JPA repository generates isn't even close to what it should be.
My class (simplified):
@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
public class TestRun implements Serializable {
private static final long serialVersionUID = 0L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long testRunId;
@OneToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "parent_run_id", referencedColumnName = "testRunId")
@JsonManagedReference
private TestRun parentRun;
@OneToOne(fetch = FetchType.LAZY, mappedBy = "parentRun")
@JsonBackReference
private TestRun childRun;
}
My jpa repository method:
List<TestRun> getByChildRunIsNull();
The relevant portions of the query it generates:
select * from "qa_result".test_run test_run
where test_run.test_run_id is null
Obviously, that where clause will never return anything, since test_run_id is a required field. There are plenty of testRuns that have a null childRun when I query for all of them, so at the very least it's treating my object the way I want when it reads it from the database.
Can I do this via a JPA repository? Or do I have to write my own query?
I cannot query for only those results with a parent, because we can rerun a rerun.
spring hibernate spring-data-jpa
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
add a comment |
I have a table called test_run. This table has an id called parent_run_id that references the parent test run (I have this because we rerun failed tests in their own run). This class works as desired, and returns both the parent and child run when I query for an id.
I want to find all the test runs without a child. This essentially means that I want the most recent test reruns, or the original if there is no rerun. However, the query that the JPA repository generates isn't even close to what it should be.
My class (simplified):
@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
public class TestRun implements Serializable {
private static final long serialVersionUID = 0L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long testRunId;
@OneToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "parent_run_id", referencedColumnName = "testRunId")
@JsonManagedReference
private TestRun parentRun;
@OneToOne(fetch = FetchType.LAZY, mappedBy = "parentRun")
@JsonBackReference
private TestRun childRun;
}
My jpa repository method:
List<TestRun> getByChildRunIsNull();
The relevant portions of the query it generates:
select * from "qa_result".test_run test_run
where test_run.test_run_id is null
Obviously, that where clause will never return anything, since test_run_id is a required field. There are plenty of testRuns that have a null childRun when I query for all of them, so at the very least it's treating my object the way I want when it reads it from the database.
Can I do this via a JPA repository? Or do I have to write my own query?
I cannot query for only those results with a parent, because we can rerun a rerun.
spring hibernate spring-data-jpa
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
The way you've structured it, you would need a nested query. You're asking: SELECT p.* FROM Test_Run as p WHERE p.test_run_id NOT IN (SELECT c.test_run_id from TEST_RUN as c where c.parent_run_id IS NOT NULL); There may be a way to write that with Spring's method naming conventions, but you can certainly do it with a
– sofend
Nov 19 '18 at 23:45
add a comment |
I have a table called test_run. This table has an id called parent_run_id that references the parent test run (I have this because we rerun failed tests in their own run). This class works as desired, and returns both the parent and child run when I query for an id.
I want to find all the test runs without a child. This essentially means that I want the most recent test reruns, or the original if there is no rerun. However, the query that the JPA repository generates isn't even close to what it should be.
My class (simplified):
@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
public class TestRun implements Serializable {
private static final long serialVersionUID = 0L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long testRunId;
@OneToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "parent_run_id", referencedColumnName = "testRunId")
@JsonManagedReference
private TestRun parentRun;
@OneToOne(fetch = FetchType.LAZY, mappedBy = "parentRun")
@JsonBackReference
private TestRun childRun;
}
My jpa repository method:
List<TestRun> getByChildRunIsNull();
The relevant portions of the query it generates:
select * from "qa_result".test_run test_run
where test_run.test_run_id is null
Obviously, that where clause will never return anything, since test_run_id is a required field. There are plenty of testRuns that have a null childRun when I query for all of them, so at the very least it's treating my object the way I want when it reads it from the database.
Can I do this via a JPA repository? Or do I have to write my own query?
I cannot query for only those results with a parent, because we can rerun a rerun.
spring hibernate spring-data-jpa
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
I have a table called test_run. This table has an id called parent_run_id that references the parent test run (I have this because we rerun failed tests in their own run). This class works as desired, and returns both the parent and child run when I query for an id.
I want to find all the test runs without a child. This essentially means that I want the most recent test reruns, or the original if there is no rerun. However, the query that the JPA repository generates isn't even close to what it should be.
My class (simplified):
@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
public class TestRun implements Serializable {
private static final long serialVersionUID = 0L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long testRunId;
@OneToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "parent_run_id", referencedColumnName = "testRunId")
@JsonManagedReference
private TestRun parentRun;
@OneToOne(fetch = FetchType.LAZY, mappedBy = "parentRun")
@JsonBackReference
private TestRun childRun;
}
My jpa repository method:
List<TestRun> getByChildRunIsNull();
The relevant portions of the query it generates:
select * from "qa_result".test_run test_run
where test_run.test_run_id is null
Obviously, that where clause will never return anything, since test_run_id is a required field. There are plenty of testRuns that have a null childRun when I query for all of them, so at the very least it's treating my object the way I want when it reads it from the database.
Can I do this via a JPA repository? Or do I have to write my own query?
I cannot query for only those results with a parent, because we can rerun a rerun.
spring hibernate spring-data-jpa
spring hibernate spring-data-jpa
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
edited Nov 20 '18 at 15:10
Billy Frost
1,799198
1,799198
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
asked Nov 19 '18 at 23:04
Tyler MacMillanTyler MacMillan
447520
447520
The way you've structured it, you would need a nested query. You're asking: SELECT p.* FROM Test_Run as p WHERE p.test_run_id NOT IN (SELECT c.test_run_id from TEST_RUN as c where c.parent_run_id IS NOT NULL); There may be a way to write that with Spring's method naming conventions, but you can certainly do it with a
– sofend
Nov 19 '18 at 23:45
add a comment |
The way you've structured it, you would need a nested query. You're asking: SELECT p.* FROM Test_Run as p WHERE p.test_run_id NOT IN (SELECT c.test_run_id from TEST_RUN as c where c.parent_run_id IS NOT NULL); There may be a way to write that with Spring's method naming conventions, but you can certainly do it with a
– sofend
Nov 19 '18 at 23:45
The way you've structured it, you would need a nested query. You're asking: SELECT p.* FROM Test_Run as p WHERE p.test_run_id NOT IN (SELECT c.test_run_id from TEST_RUN as c where c.parent_run_id IS NOT NULL); There may be a way to write that with Spring's method naming conventions, but you can certainly do it with a
– sofend
Nov 19 '18 at 23:45
The way you've structured it, you would need a nested query. You're asking: SELECT p.* FROM Test_Run as p WHERE p.test_run_id NOT IN (SELECT c.test_run_id from TEST_RUN as c where c.parent_run_id IS NOT NULL); There may be a way to write that with Spring's method naming conventions, but you can certainly do it with a
– sofend
Nov 19 '18 at 23:45
add a comment |
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The way you've structured it, you would need a nested query. You're asking: SELECT p.* FROM Test_Run as p WHERE p.test_run_id NOT IN (SELECT c.test_run_id from TEST_RUN as c where c.parent_run_id IS NOT NULL); There may be a way to write that with Spring's method naming conventions, but you can certainly do it with a
– sofend
Nov 19 '18 at 23:45