public virtual CacheQueryEntry Clone()
{
CacheQueryEntry queryEntry = new CacheQueryEntry(_Query);
foreach(Parameter cloneParam in _Parameters)
{
queryEntry.Parameters.Add(cloneParam.Clone());
}
return queryEntry;
}
public Hashtable InitializeCompoundUpdateCommand(EntityMapping entity, ArrayList updateCommands)
{
Hashtable updateCompoundQueryEntries = new Hashtable();
if (entity.Attributes != null)
{
// Loops through attributes so as to create as many SQL Update Command as Tables
foreach (UpdateAttributeCommand a in updateCommands)
{
AttributeMapping attributeMapping = entity.Attributes[a.Name];
if (attributeMapping == null)
throw new SqlMapperException(string.Format("Cannot find the attribute '{0}' of the entity '{1}' in your mapping file", a.Name, entity.Type));
CacheQueryEntry entry = null;
if (attributeMapping.Discriminator == null)
{
// Creates an UpdateCommand for each Table and add the Where clause for the command
if (!updateCompoundQueryEntries.Contains(attributeMapping.Table))
{
CacheQueryEntry cacheEntry = new CacheQueryEntry(new UpdateCommand(attributeMapping, attributeMapping.Table));
updateCompoundQueryEntries.Add(attributeMapping.Table, cacheEntry);
if ((attributeMapping.ParentField == null || attributeMapping.ParentField == string.Empty) && attributeMapping.Table != entity.Table)
{
attributeMapping.ParentField = entity.IdFields;
Parameter param = new Parameter(attributeMapping, "FK_Entity");
cacheEntry.Parameters.Add(param);
((UpdateCommand)cacheEntry.Query).WhereClause.SearchCondition.Add(new BinaryLogicExpression(new Column(attributeMapping, attributeMapping.ParentField), BinaryLogicOperator.Equals, param));
}
}
entry = (CacheQueryEntry)updateCompoundQueryEntries[attributeMapping.Table];
}
else
{
// Initialization
entry = new CacheQueryEntry(new UpdateCommand(attributeMapping, attributeMapping.Table));
// A tag attribute mapping which name = "*", is an implicit generic query (a mapping for all attributes don't describe)
// it is differente to a explicit generic mapping (a mapping foreach attribute)
entry.IsAttributeGenericQuery = attributeMapping.Name == "*";
updateCompoundQueryEntries.Add(attributeMapping.Table, entry);
}
UpdateCommand query = (UpdateCommand)entry.Query;
ArrayList parameters = entry.Parameters;
if (!query.ColumnValueCollection.Contains(attributeMapping.Field))
{
Parameter param = new Parameter(attributeMapping, attributeMapping.Field);
parameters.Add(param);
query.ColumnValueCollection.Add(attributeMapping.Field, param);
if (attributeMapping.Discriminator != null)
{
if (attributeMapping.Name != "*")
{
query.WhereClause.SearchCondition.Add(new BinaryLogicExpression(
new Column(attributeMapping, attributeMapping.Discriminator),
BinaryLogicOperator.Equals,
new Constant(attributeMapping.DiscriminatorValue == null ? attributeMapping.Name : attributeMapping.DiscriminatorValue, DbType.String)));
param = new Parameter(attributeMapping, "FK_Entity");
parameters.Add(param);
query.WhereClause.SearchCondition.Add(new BinaryLogicExpression(new Column(attributeMapping, attributeMapping.ParentField), BinaryLogicOperator.Equals, param));
}
else
{
param = new Parameter(attributeMapping, "AttributeDiscriminator");
parameters.Add(param);
query.WhereClause.SearchCondition.Add(new BinaryLogicExpression(new Column(attributeMapping, attributeMapping.Discriminator), BinaryLogicOperator.Equals, param));
param = new Parameter(attributeMapping, "FK_Entity");
parameters.Add(param);
query.WhereClause.SearchCondition.Add(new BinaryLogicExpression(new Column(attributeMapping, attributeMapping.ParentField), BinaryLogicOperator.Equals, param));
}
}
if (attributeMapping.ParentField == null && !entry.ContainsParameter("EntityId") && !entry.ContainsParameter("Id0"))
{
if (entity.Ids.Count == 1)
{
param = new Parameter(entity.Ids[0], "EntityId");
parameters.Add(param);
query.WhereClause.SearchCondition.Add(new BinaryLogicExpression(
new Column(entity, entity.IdFields),
BinaryLogicOperator.Equals,
param));
}
else
{
for (int i = 0; i < entity.Ids.Count; i++)
{
PrimaryKeyMapping pkId = entity.Ids[i];
param = new Parameter(pkId, string.Concat("Id", i.ToString()));
parameters.Add(param);
query.WhereClause.SearchCondition.Add(new BinaryLogicExpression(
new Column(entity, entity.GetIdField(pkId)),
BinaryLogicOperator.Equals,
param));
}
}
}
}
}
}
return updateCompoundQueryEntries;
}
private DictionaryEntry FindDictionaryEntry(CacheQueryEntry entry, ArrayList queries)
{
foreach (DictionaryEntry d in queries)
{
if (d.Key == entry)
return d;
}
return new DictionaryEntry(entry, _Driver.CreateCommand(_Dialect.RenderQueries(entry.Query, _Driver)[0], _Connection));
}
