public PrefetchPolicy this[IClass @class] // Indexer declaration
{
get
{
if (!this.prefetchPolicyByClass.TryGetValue(@class, out var prefetchPolicy))
{
var prefetchPolicyBuilder = new PrefetchPolicyBuilder();
foreach (var roleType in @class.RoleTypes)
{
prefetchPolicyBuilder.WithRule(roleType);
}
foreach (var associationType in @class.AssociationTypes)
{
prefetchPolicyBuilder.WithRule(associationType);
}
prefetchPolicy = prefetchPolicyBuilder.Build();
this.prefetchPolicyByClass[@class] = prefetchPolicy;
}
return(prefetchPolicy);
}
}
public void BuildPrefetchPolicy(PrefetchPolicyBuilder prefetchPolicyBuilder)
{
if (this.Nodes == null || this.Nodes.Length == 0)
{
prefetchPolicyBuilder.WithRule(this.PropertyType);
}
else
{
var nestedPrefetchPolicyBuilder = new PrefetchPolicyBuilder();
foreach (var node in this.Nodes)
{
node.BuildPrefetchPolicy(nestedPrefetchPolicyBuilder);
}
var nestedPrefetchPolicy = nestedPrefetchPolicyBuilder.Build();
prefetchPolicyBuilder.WithRule(this.PropertyType, nestedPrefetchPolicy);
}
}
public void BuildPrefetchPolicy(PrefetchPolicyBuilder prefetchPolicyBuilder)
{
if (this.Nodes.Count == 0)
{
prefetchPolicyBuilder.WithRule(this.RoleType);
}
else
{
var nestedPrefetchPolicyBuilder = new PrefetchPolicyBuilder();
foreach (var node in this.Nodes)
{
node.BuildPrefetchPolicy(nestedPrefetchPolicyBuilder);
}
var nestedPrefetchPolicy = nestedPrefetchPolicyBuilder.Build();
prefetchPolicyBuilder.WithRule(this.RoleType, nestedPrefetchPolicy);
}
}
public void PrefetchCompositesRole()
{
var database = this.CreateDatabase();
database.Init();
using (var session = database.CreateSession())
{
var c1a = C1.Create(session);
var c1b = C1.Create(session);
var c2a = C2.Create(session);
var c2b = C2.Create(session);
var c2c = C2.Create(session);
c1a.AddC1C2one2many(c2a);
c1a.AddC1C2one2many(c2b);
session.Commit();
c1a.RemoveC1C1one2manies();
c1a.AddC1C2one2many(c2c);
var extent = session.Extent <C1>();
var array = extent.ToArray();
var nestedPrefetchPolicyBuilder = new PrefetchPolicyBuilder();
nestedPrefetchPolicyBuilder.WithRule(M.C2.C2C2one2manies);
var nestedPrefetchPolicy = nestedPrefetchPolicyBuilder.Build();
var prefetchPolicyBuilder = new PrefetchPolicyBuilder();
prefetchPolicyBuilder.WithRule(M.C1.C1C2one2manies, nestedPrefetchPolicy);
var prefetchPolicy = prefetchPolicyBuilder.Build();
session.Prefetch(prefetchPolicy, new[] { c1a, c1b });
var result = c1a.C1C2one2manies;
session.Rollback();
Assert.Equal(2, c1a.C1C2one2manies.Count);
Assert.Contains(c2a, c1a.C1C2one2manies.ToArray());
Assert.Contains(c2b, c1a.C1C2one2manies.ToArray());
}
}
public void PrefetchCompositeRole()
{
var database = this.CreateDatabase();
database.Init();
using (var session = database.CreateSession())
{
var c1a = C1.Create(session);
var c1b = C1.Create(session);
var c2a = C2.Create(session);
var c2b = C2.Create(session);
session.Commit();
c1a.C1C2many2one = c2a;
var extent = session.Extent <C1>();
var array = extent.ToArray();
var nestedPrefetchPolicyBuilder = new PrefetchPolicyBuilder();
nestedPrefetchPolicyBuilder.WithRule(M.C2.C2C2one2manies);
var nestedPrefetchPolicy = nestedPrefetchPolicyBuilder.Build();
var prefetchPolicyBuilder = new PrefetchPolicyBuilder();
prefetchPolicyBuilder.WithRule(M.C1.C1C2many2one, nestedPrefetchPolicy);
var prefetchPolicy = prefetchPolicyBuilder.Build();
session.Prefetch(prefetchPolicy, new[] { c1a, c1b });
var result = c1a.C1C2many2one;
session.Rollback();
Assert.False(c1a.ExistC1C2many2one);
}
}