public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
// All has two arguments. Arg 1 is the source and arg 2 is the predicate
var predicate = (LambdaExpression) arguments[1];
return treeBuilder.BooleanNot(
treeBuilder.Exists(
treeBuilder.Query(
treeBuilder.SelectFrom(
treeBuilder.From(
treeBuilder.Range(
visitor.Visit(arguments[0]),
treeBuilder.Alias(predicate.Parameters[0].Name))
)
),
treeBuilder.Where(
treeBuilder.BooleanNot(visitor.Visit(arguments[1]).AsBooleanExpression())
)
)
)
);
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
HqlAlias alias = null;
HqlWhere where = null;
if (arguments.Count > 1)
{
var expr = (LambdaExpression) arguments[1];
alias = treeBuilder.Alias(expr.Parameters[0].Name);
where = treeBuilder.Where(visitor.Visit(arguments[1]).AsExpression());
}
return treeBuilder.Exists(
treeBuilder.Query(
treeBuilder.SelectFrom(
treeBuilder.From(
treeBuilder.Range(
visitor.Visit(arguments[0]),
alias)
)
),
where));
}
public IntermediateHqlTree(bool root)
{
_isRoot = root;
TreeBuilder = new HqlTreeBuilder();
_root = TreeBuilder.Query(TreeBuilder.SelectFrom(TreeBuilder.From()));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
// TODO - alias generator
HqlAlias alias = treeBuilder.Alias("x");
ParameterExpression param = Expression.Parameter(targetObject.Type, "x");
HqlWhere where = treeBuilder.Where(visitor.Visit(Expression.Lambda(
Expression.Equal(param, arguments[0]), param))
.AsExpression());
return treeBuilder.Exists(
treeBuilder.Query(
treeBuilder.SelectFrom(
treeBuilder.From(
treeBuilder.Range(
visitor.Visit(targetObject),
alias)
)
),
where));
}
