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Point of view
All features
deferred class RESULT_ROW
Summary
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A row of results from an SQL query. Once this class cointained queries to test the types of the various elements of the row but it was a wrong design. A better approach is either to use VARIANT or one of its specialized heirs or to enrich VARIANT itself.
copyright
(C) 2006 Paolo Redaelli
license
LGPL v2 or later
date
$Date:$
revision
$Revision:$
Direct parents
Inherit list: TRAVERSABLE
Known children
Inherit list: SQLITE_RESULT_ROW
Overview
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enumerate: ENUMERATE[E_]
effective function
{ANY}
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new_iterator: ITERATOR[E_]
deferred function
{ANY}
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ensure
get_new_iterator: ITERATOR[E_]
frozen
effective function
{ANY}
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This feature is obsolete: Use `new_iterator' instead. This historical SmartEiffel feature is badly named.
for_each (action: PROCEDURE[TUPLE[TUPLE 1[E_]]])
effective procedure
{ANY}
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Apply action to every item of Current.
See also for_all, exists, aggregate.
require
  • action /= Void
for_all (test: FUNCTION[TUPLE[TUPLE 1[E_]]]): BOOLEAN
effective function
{ANY}
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Do all items satisfy test?
See also for_each, exists, aggregate.
require
  • test /= Void
exists (test: FUNCTION[TUPLE[TUPLE 1[E_]]]): BOOLEAN
effective function
{ANY}
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Does at least one item satisfy test?
See also for_each, for_all, aggregate.
require
  • test /= Void
aggregate (action: FUNCTION[TUPLE[TUPLE 2[E_, E_], E_]], initial: E_): E_
effective function
{ANY}
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Aggregate all the elements starting from the initial value.
See also for_each, for_all, exists.
require
  • action /= Void
out_in_tagged_out_memory
effective procedure
{ANY}
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Append terse printable representation of current object in tagged_out_memory.
require
  • locked: tagged_out_locked
ensure
  • still_locked: tagged_out_locked
  • not_cleared: tagged_out_memory.count >= old tagged_out_memory.count
  • append_only: old tagged_out_memory.twin.is_equal(tagged_out_memory.substring(1, old tagged_out_memory.count))
generation: INTEGER_32
writable attribute
{ANY}
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next_generation
effective procedure
{}
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ensure
count: INTEGER_32
deferred function
{ANY}
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Number of available items in the hoard.
See also is_empty
ensure
  • Result >= 0
is_empty: BOOLEAN
deferred function
{ANY}
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Is the hoard empty ?
See also count.
ensure
  • definition: Result = count = 0
do_all (action: ROUTINE[TUPLE[TUPLE 1[E_]]])
frozen
effective procedure
{ANY}
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Apply action to every item of Current.
This feature is obsolete: Use `for_each` instead. This feature is not secure because it accepts a FUNCTION, the result of which is lost.
_inline_agent1 (a: ROUTINE[TUPLE[TUPLE 1[E_]]], e: E_)
frozen
effective procedure
{}
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lower: INTEGER_32
deferred function
{ANY}
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Minimum index.
See also upper, valid_index, item.
upper: INTEGER_32
deferred function
{ANY}
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Maximum index.
See also lower, valid_index, item.
valid_index (i: INTEGER_32): BOOLEAN
effective function
{ANY}
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True when i is valid (i.e., inside actual bounds).
See also lower, upper, item.
ensure
item (i: INTEGER_32): E_
deferred function
{ANY}
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Item at the corresponding index i.
See also lower, upper, valid_index.
require
first: E_
deferred function
{ANY}
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The very first item.
See also last, item.
require ensure
last: E_
deferred function
{ANY}
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The last item.
See also first, item.
require ensure