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author | John Wiegley <johnw@newartisans.com> | 2008-08-05 13:17:04 -0400 |
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committer | John Wiegley <johnw@newartisans.com> | 2008-08-05 18:05:49 -0400 |
commit | f6f4a46cf5b14f9a2170cd6475958efbf320caec (patch) | |
tree | 05bc1defcdebc201de3dd10477483d906a842821 /src/iterators.h | |
parent | b7970b29855563e4c67f85af8b31233eda80c22a (diff) | |
download | fork-ledger-f6f4a46cf5b14f9a2170cd6475958efbf320caec.tar.gz fork-ledger-f6f4a46cf5b14f9a2170cd6475958efbf320caec.tar.bz2 fork-ledger-f6f4a46cf5b14f9a2170cd6475958efbf320caec.zip |
Moved around most of the files so that source code is in src/, documentation
is in doc/, etc.
Diffstat (limited to 'src/iterators.h')
-rw-r--r-- | src/iterators.h | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/iterators.h b/src/iterators.h new file mode 100644 index 00000000..c52a6827 --- /dev/null +++ b/src/iterators.h @@ -0,0 +1,226 @@ +/* + * Copyright (c) 2003-2008, John Wiegley. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of New Artisans LLC nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _ITERATORS_H +#define _ITERATORS_H + +#include "journal.h" +#include "entry.h" +#include "account.h" + +namespace ledger { + +class xacts_iterator : public noncopyable +{ +public: + virtual xact_t * operator()() = 0; +}; + +class entry_xacts_iterator : public xacts_iterator +{ + xacts_list::iterator xacts_i; + xacts_list::iterator xacts_end; + + bool xacts_uninitialized; + +public: + entry_xacts_iterator() : xacts_uninitialized(true) { + TRACE_CTOR(entry_xacts_iterator, ""); + } + entry_xacts_iterator(entry_t& entry) + : xacts_uninitialized(true) { + TRACE_CTOR(entry_xacts_iterator, "entry_t&"); + reset(entry); + } + virtual ~entry_xacts_iterator() throw() { + TRACE_DTOR(entry_xacts_iterator); + } + + void reset(entry_t& entry) { + xacts_i = entry.xacts.begin(); + xacts_end = entry.xacts.end(); + + xacts_uninitialized = false; + } + + virtual xact_t * operator()() { + if (xacts_i == xacts_end || xacts_uninitialized) + return NULL; + return *xacts_i++; + } +}; + +class entries_iterator : public noncopyable +{ + ptr_list<journal_t>::iterator journals_i; + ptr_list<journal_t>::iterator journals_end; + + bool journals_uninitialized; + + entries_list::iterator entries_i; + entries_list::iterator entries_end; + + bool entries_uninitialized; + +public: + entries_iterator() + : journals_uninitialized(true), entries_uninitialized(true) { + TRACE_CTOR(entries_iterator, ""); + } + entries_iterator(session_t& session) + : journals_uninitialized(true), entries_uninitialized(true) { + TRACE_CTOR(entries_iterator, "session_t&"); + reset(session); + } + ~entries_iterator() throw() { + TRACE_DTOR(entries_iterator); + } + + void reset(session_t& session); + + entry_t * operator()(); +}; + +class session_xacts_iterator : public xacts_iterator +{ + entries_iterator entries; + entry_xacts_iterator xacts; + +public: + session_xacts_iterator() { + TRACE_CTOR(session_xacts_iterator, ""); + } + session_xacts_iterator(session_t& session) { + TRACE_CTOR(session_xacts_iterator, "session_t&"); + reset(session); + } + virtual ~session_xacts_iterator() throw() { + TRACE_DTOR(session_xacts_iterator); + } + + void reset(session_t& session); + + virtual xact_t * operator()(); +}; + +class accounts_iterator : public noncopyable +{ +public: + virtual account_t * operator()() = 0; +}; + +class basic_accounts_iterator : public accounts_iterator +{ + std::list<accounts_map::const_iterator> accounts_i; + std::list<accounts_map::const_iterator> accounts_end; + +public: + basic_accounts_iterator() { + TRACE_CTOR(basic_accounts_iterator, ""); + } + basic_accounts_iterator(account_t& account) { + TRACE_CTOR(basic_accounts_iterator, "account_t&"); + push_back(account); + } + virtual ~basic_accounts_iterator() throw() { + TRACE_DTOR(basic_accounts_iterator); + } + + void push_back(account_t& account) { + accounts_i.push_back(account.accounts.begin()); + accounts_end.push_back(account.accounts.end()); + } + + virtual account_t * operator()(); +}; + +class sorted_accounts_iterator : public accounts_iterator +{ + expr_t sort_cmp; + + typedef std::deque<account_t *> accounts_deque_t; + + std::list<accounts_deque_t> accounts_list; + std::list<accounts_deque_t::const_iterator> sorted_accounts_i; + std::list<accounts_deque_t::const_iterator> sorted_accounts_end; + +public: + sorted_accounts_iterator(const string& sort_order) { + TRACE_CTOR(sorted_accounts_iterator, "const string&"); + sort_cmp = expr_t(sort_order); + } + sorted_accounts_iterator(account_t& account, const string& sort_order) { + TRACE_CTOR(sorted_accounts_iterator, "account_t&, const string&"); + sort_cmp = expr_t(sort_order); + push_back(account); + } + virtual ~sorted_accounts_iterator() throw() { + TRACE_DTOR(sorted_accounts_iterator); + } + + void sort_accounts(account_t& account, accounts_deque_t& deque); + + void push_back(account_t& account) { + accounts_list.push_back(accounts_deque_t()); + sort_accounts(account, accounts_list.back()); + + sorted_accounts_i.push_back(accounts_list.back().begin()); + sorted_accounts_end.push_back(accounts_list.back().end()); + } + + virtual account_t * operator()(); +}; + +class journals_iterator : public noncopyable +{ + ptr_list<journal_t>::iterator journals_i; + ptr_list<journal_t>::iterator journals_end; + +public: + journals_iterator() { + TRACE_CTOR(journals_iterator, ""); + } + journals_iterator(session_t& session) { + TRACE_CTOR(journals_iterator, "session_t&"); + reset(session); + } + virtual ~journals_iterator() throw() { + TRACE_DTOR(journals_iterator); + } + + void reset(session_t& session); + + virtual journal_t * operator()(); +}; + +} // namespace ledger + +#endif // _ITERATORS_H |