public QueryBuilder()
{
Session = GlobalConfiguration.Current.Session;
BuilderHelper = new BuilderHelper <T, TItem>(this, GlobalConfiguration.Current.UseBindings);
Parameters = new Dictionary <string, object>();
CurrentQuery = new T();
CurrentQuery.TableName = TableCache <TItem> .CachedTable.TableName;
CurrentQuery.KeyspaceName = TableCache <TItem> .CachedTable.KeyspaceName;
}
public UpdateBuilder <T> Set(Expression <Func <T, object> > select, Assignment.CounterModifierTypes counterModifierType, object value)
{
string selection = BuilderHelper.ParseSimpleMemberAccess(select);
if (selection != null)
{
CurrentQuery.Assignments.Add(new Assignment(selection, counterModifierType, GenerateBindMarker(value)));
}
return(this);
}
public UpdateBuilder <T> Set(Expression <Func <T, object> > select, object value)
{
SimpleSelection selection = BuilderHelper.ParseSimpleSelection(select);
if (selection != null)
{
CurrentQuery.Assignments.Add(new Assignment(selection, GenerateBindMarker(value)));
}
return(this);
}
public DeleteBuilder <T> Delete(params Expression <Func <T, object> >[] selects)
{
if (selects != null)
{
foreach (Expression <Func <T, object> > select in selects)
{
SimpleSelection selection = BuilderHelper.ParseSimpleSelection(select);
if (selection != null)
{
CurrentQuery.Selections.Add(selection);
}
}
}
return(this);
}
private void BaseAlterSet <TItem>(Expression <Func <T, ISet <TItem> > > select, ISet <TItem> values, Assignment.CollectionModifierTypes modifierType)
{
string selection = BuilderHelper.ParseSimpleMemberAccess(select);
if (values != null &&
selection != null)
{
ISet <Term> translatedList = new HashSet <Term>();
foreach (TItem value in values)
{
translatedList.Add(GenerateBindMarker(value));
}
CollectionLiteral literal = new CollectionLiteral(translatedList);
CurrentQuery.Assignments.Add(new Assignment(selection, modifierType, literal));
}
}
public UpdateBuilder <T> AddToMap <TKey, TValue>(Expression <Func <T, IDictionary <TKey, TValue> > > select, IDictionary <TKey, TValue> values)
{
string selection = BuilderHelper.ParseSimpleMemberAccess(select);
if (selection != null &&
values != null)
{
IDictionary <Term, Term> translated = new Dictionary <Term, Term>();
foreach (KeyValuePair <TKey, TValue> value in values)
{
translated.Add(GenerateBindMarker(value.Key), GenerateBindMarker(value.Value));
}
CollectionLiteral literal = new CollectionLiteral(translated);
CurrentQuery.Assignments.Add(new Assignment(selection, Assignment.CollectionModifierTypes.Add, literal));
}
return(this);
}
public UpdateBuilder <T> RemoveFromMap <TKey, TValue>(Expression <Func <T, IDictionary <TKey, TValue> > > select, ISet <TKey> keys)
{
string selection = BuilderHelper.ParseSimpleMemberAccess(select);
if (keys != null &&
selection != null)
{
ISet <Term> translatedList = new HashSet <Term>();
foreach (TKey value in keys)
{
translatedList.Add(GenerateBindMarker(value));
}
CollectionLiteral literal = new CollectionLiteral(translatedList);
CurrentQuery.Assignments.Add(new Assignment(selection, Assignment.CollectionModifierTypes.Remove, literal));
}
return(this);
}
public SelectBuilder <T> Where(Expression <Func <T, bool> > predicate)
{
CurrentQuery.WhereClause = BuilderHelper.ParseWhere(predicate);
return(this);
}
public UpdateBuilder <T> If(Expression <Func <T, bool> > predicate)
{
CurrentQuery.Conditions = BuilderHelper.ParseConditions(predicate);
return(this);
}