public override MappingEntity GetEntity(Type elementType, string tableId)
{
if (tableId == null)
{
tableId = GetTableId(elementType);
}
MappingEntity entity;
rwLock.AcquireReaderLock(Timeout.Infinite);
if (!entities.TryGetValue(tableId, out entity))
{
rwLock.ReleaseReaderLock();
rwLock.AcquireWriterLock(Timeout.Infinite);
if (!entities.TryGetValue(tableId, out entity))
{
entity = new CompositiveMappingEntity(elementType, tableId);
this.entities.Add(tableId, entity);
}
rwLock.ReleaseWriterLock();
}
else
{
rwLock.ReleaseReaderLock();
}
return(entity);
}
public override string GetTableName(MappingEntity entity)
{
CompositiveMappingEntity en = (CompositiveMappingEntity)entity;
if (en.Table != null)
{
return(en.Table.Name);
}
return(base.GetTableName(entity));
}
public override bool IsGenerated(MappingEntity entity, MemberInfo member)
{
CompositiveMappingEntity en = (CompositiveMappingEntity)entity;
CompositiveMappingMember mm = en.GetMappingMember(member.Name);
if (mm != null && mm.Column != null)
{
return(mm.Column.IsGenerated);
}
return(base.IsGenerated(entity, member));
}
public override bool IsColumn(MappingEntity entity, MemberInfo member)
{
CompositiveMappingEntity en = (CompositiveMappingEntity)entity;
CompositiveMappingMember mm = en.GetMappingMember(member.Name);
if (mm != null)
{
return(!mm.NotMapped);
}
return(base.IsColumn(entity, member));
}
public override string GetColumnName(MappingEntity entity, MemberInfo member)
{
CompositiveMappingEntity en = (CompositiveMappingEntity)entity;
CompositiveMappingMember mm = en.GetMappingMember(member.Name);
if (mm != null && mm.Column != null)
{
return(mm.Column.Name);
}
return(base.GetColumnName(entity, member));
}
public override ProjectionExpression GetQueryExpression(MappingEntity entity)
{
CompositiveMappingEntity mme = (CompositiveMappingEntity)entity;
if (mme.Table == null || string.IsNullOrEmpty(mme.Table.View))
{
var tableAlias = new TableAlias();
var selectAlias = new TableAlias();
var columns = new List <ColumnDeclaration>();
var aliases = new Dictionary <string, TableAlias>();
var table = new TableExpression(tableAlias, entity, (this.Mapping as BasicMapping).GetTableName(entity));
this.GetColumns(entity, aliases, columns);
SelectExpression root = new SelectExpression(new TableAlias(), columns, table, null);
Expression projector = this.GetEntityExpression(table, entity);
var pc = ColumnProjector.ProjectColumns(this.Translator.Linguist.Language, projector, null, selectAlias, tableAlias);
var proj = new ProjectionExpression(
new SelectExpression(selectAlias, pc.Columns, table, null),
pc.Projector
);
return((ProjectionExpression)this.Translator.Police.ApplyPolicy(proj, entity.ElementType));
}
else
{
var tableAlias = new TableAlias();
var selectAlias = new TableAlias();
var columns = new List <ColumnDeclaration>();
var aliases = new Dictionary <string, TableAlias>();
var table = new TableExpression(tableAlias, entity, mme.Table.View);
ColumnDeclaration cd = new ColumnDeclaration("*", "", new AllColumnExpression(tableAlias), new DbQueryType(SqlDbType.Variant, false, 0, 0, 0));
columns.Add(cd);
SelectExpression root = new SelectExpression(new TableAlias(), columns, table, null);
Expression projector = this.GetEntityExpression(table, entity);
//var pc = ColumnProjector.ProjectColumns(this.Translator.Linguist.Language, projector, null, selectAlias, tableAlias);
var proj = new ProjectionExpression(
new SelectExpression(selectAlias, columns, table, null),
projector
);
return((ProjectionExpression)this.Translator.Police.ApplyPolicy(proj, entity.ElementType));
}
}
