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csharper2010bahusoid
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Test case
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‎src/NHibernate.Test/NHSpecificTest/GH3334/Entity.cs

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using System.Collections.Generic;
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namespace NHibernate.Test.NHSpecificTest.GH3334
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{
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public class Entity
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{
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public virtual int Id { get; set; }
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public virtual string Name { get; set; }
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public virtual ISet<ChildEntity> Children { get; set; } = new HashSet<ChildEntity>();
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public virtual OtherEntity OtherEntity { get; set; }
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}
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public class ChildEntity
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{
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public virtual int Id { get; set; }
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public virtual Entity Parent { get; set; }
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public virtual string Name { get; set; }
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public virtual GrandChildEntity Child { get; set; }
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}
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public class GrandChildEntity
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{
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public virtual int Id { get; set; }
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public virtual string Name { get; set; }
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}
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public class OtherEntity
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{
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public virtual int Id { get; set; }
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public virtual string Name { get; set; }
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public virtual ISet<Entity> Entities { get; set; } = new HashSet<Entity>();
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}
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}

‎src/NHibernate.Test/NHSpecificTest/GH3334/Fixture.cs

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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using NUnit.Framework;
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namespace NHibernate.Test.NHSpecificTest.GH3334
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{
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[TestFixture]
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public class Fixture : BugTestCase
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{
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[OneTimeSetUp]
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public void OneTimeSetUp()
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{
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using (var session = OpenSession())
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using (var t = session.BeginTransaction())
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{
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var parent = new Entity
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{
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Name = "Parent1",
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Children = { new ChildEntity { Name = "Child", Child = new GrandChildEntity { Name = "GrandChild" } } }
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};
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session.Save(parent);
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parent = new Entity
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{
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Name = "Parent2",
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Children = { new ChildEntity { Name = "Child", Child = new GrandChildEntity { Name = "XGrandChild" } } }
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};
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var other = new OtherEntity { Name = "ABC", Entities = {parent}};
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parent.OtherEntity = other;
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session.Save(parent);
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session.Save(other);
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t.Commit();
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}
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Sfi.Statistics.IsStatisticsEnabled = true;
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}
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[OneTimeTearDown]
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public void OneTimeTearDown()
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{
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Sfi.Statistics.IsStatisticsEnabled = false;
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using var session = OpenSession();
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using var transaction = session.BeginTransaction();
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session.CreateQuery("delete from ChildEntity").ExecuteUpdate();
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session.CreateQuery("delete from GrandChildEntity").ExecuteUpdate();
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session.CreateQuery("delete from Entity").ExecuteUpdate();
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session.CreateQuery("delete from OtherEntity").ExecuteUpdate();
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transaction.Commit();
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}
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public class TestCaseItem
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{
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public string Name { get; }
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public string Hql { get; }
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public int LineNumber { get; }
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public TestCaseItem(string name, string hql, [CallerLineNumber] int lineNumber = 0)
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{
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Name = name;
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Hql = hql;
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LineNumber = lineNumber;
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}
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public override string ToString() => $"{LineNumber:0000}: {Name}";
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}
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public static IEnumerable<TestCaseItem> GetNoExceptionOnExecuteQueryTestCases()
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{
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/* does not work because of inner join or theta join created for many-to-one
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@"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ELEMENTS(ROOT.Children) AS child
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WHERE
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child.Child.Name like 'G%'
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OR ROOT.OtherEntity.Name like 'A%'
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)");*/
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yield return new("Basic Elements case 1 FoundViaGrandChildG", @"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ELEMENTS(ROOT.Children) AS child
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LEFT JOIN child.Child AS grandChild
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WHERE
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grandChild.Name like 'G%'
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)");
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yield return new("Basic Elements case 2 FoundViaOtherEntityA", @"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ELEMENTS(ROOT.OtherEntity) AS otherEntity
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WHERE
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otherEntity.Name like 'A%'
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)");
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yield return new("HQL Elements FoundViaGrandChildG", @"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ELEMENTS(ROOT.Children) AS child
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LEFT JOIN child.Child AS grandChild
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LEFT JOIN ROOT.OtherEntity AS otherEntity
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WHERE
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grandChild.Name like 'G%'
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OR otherEntity.Name like 'G%'
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)");
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yield return new("HQL Elements FoundViaOtherEntityA", @"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ELEMENTS(ROOT.Children) AS child
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LEFT JOIN child.Child AS grandChild
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LEFT JOIN ROOT.OtherEntity AS otherEntity
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WHERE
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grandChild.Name like 'A%'
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OR otherEntity.Name like 'A%'
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)");
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yield return new("HQL Entity FoundViaGrandChildG", @"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ChildEntity AS child
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LEFT JOIN child.Child AS grandChild
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LEFT JOIN ROOT.OtherEntity AS otherEntity
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WHERE
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child.Parent = ROOT
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AND (
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grandChild.Name like 'G%'
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OR otherEntity.Name like 'G%'
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)
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)");
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yield return new("HQL Entity FoundViaOtherEntityA", @"
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SELECT ROOT
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FROM Entity AS ROOT
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WHERE
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EXISTS
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(FROM ChildEntity AS child
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LEFT JOIN child.Child AS grandChild
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LEFT JOIN ROOT.OtherEntity AS otherEntity
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WHERE
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child.Parent = ROOT
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AND (
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grandChild.Name like 'A%'
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OR otherEntity.Name like 'A%'
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)
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)");
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}
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[Test, TestCaseSource(nameof(GetNoExceptionOnExecuteQueryTestCases))]
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public void NoExceptionOnExecuteQuery(TestCaseItem testCase)
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{
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using var session = OpenSession();
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using var _ = session.BeginTransaction();
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var q = session.CreateQuery(testCase.Hql);
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Assert.That(q.List(), Has.Count.EqualTo(1));
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}
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protected override bool CheckDatabaseWasCleaned()
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{
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// same set of objects for each test
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return true;
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}
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}
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}

‎src/NHibernate.Test/NHSpecificTest/GH3334/Mappings.hbm.xml

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<?xml version="1.0" encoding="utf-8" ?>
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<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="NHibernate.Test"
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namespace="NHibernate.Test.NHSpecificTest.GH3334">
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<class name="Entity">
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<id name="Id" generator="identity" />
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<property name="Name"/>
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<set name="Children" cascade="persist,delete,save-update,evict,lock,replicate,delete-orphan">
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<key column="Parent" />
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<one-to-many class="ChildEntity"/>
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</set>
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<many-to-one name="OtherEntity" class="OtherEntity"/>
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</class>
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<class name="ChildEntity">
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<id name="Id" generator="identity" />
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<many-to-one name="Parent" class="Entity" column="Parent" />
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<property name="Name"/>
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<many-to-one name="Child" class="GrandChildEntity" cascade="persist,delete,save-update,evict,lock,replicate,delete-orphan"/>
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</class>
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<class name="GrandChildEntity">
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<id name="Id" generator="identity" />
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<property name="Name"/>
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</class>
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<class name="OtherEntity">
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<id name="Id" generator="identity" />
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<property name="Name"/>
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<set name="Entities" inverse="true" lazy="true">
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<key column="OtherEntity" />
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<one-to-many class="Entity" />
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</set>
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</class>
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</hibernate-mapping>

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