public virtual void Visit(ComparisonExpression expression)
{
IQuery subQuery = Descend(expression.Left());
ComparisonQueryGeneratingVisitor visitor = new ComparisonQueryGeneratingVisitor(_predicate
, _classSource, _referenceResolver);
expression.Right().Accept(visitor);
_constraint = subQuery.Constrain(visitor.Value());
ComparisonOperator op = expression.Op();
if (op.Equals(ComparisonOperator.ValueEquality))
{
return;
}
if (op.Equals(ComparisonOperator.ReferenceEquality))
{
_constraint.Identity();
return;
}
if (op.Equals(ComparisonOperator.Greater))
{
_constraint.Greater();
return;
}
if (op.Equals(ComparisonOperator.Smaller))
{
_constraint.Smaller();
return;
}
if (op.Equals(ComparisonOperator.Contains))
{
_constraint.Contains();
return;
}
if (op.Equals(ComparisonOperator.StartsWith))
{
_constraint.StartsWith(true);
return;
}
if (op.Equals(ComparisonOperator.EndsWith))
{
_constraint.EndsWith(true);
return;
}
throw new Exception("Can't handle constraint: " + op);
}
public virtual void Visit(ComparisonExpression expression)
{
this.LoadQuery();
this.Descend(this.FieldNames(expression.Left()));
expression.Right().Accept(this.ComparisonEmitter());
this.Constrain(expression.Op());
}