Remove some things which makes it hard to understand this paper by a beginner..

1 files changed, 163 insertions, 89 deletions

diff --git a/development/pim/pim_howto/pim_howto.lyx b/development/pim/pim_howto/pim_howto.lyx
index 1e43d63..a99b0df 100644
--- a/development/pim/pim_howto/pim_howto.lyx
+++ b/development/pim/pim_howto/pim_howto.lyx
@@ -1,140 +1,119 @@
 #LyX 1.3 created this file. For more info see http://www.lyx.org/
 \lyxformat 221
 \textclass scrbook
 \begin_preamble
 \fancyhead{}
 \fancyfoot{}
 \fancyhead[LE,RO]{\slshape \leftmark}
 \fancyhead[LO,RE]{\slshape \leftmark}
 \fancyhead[RE,LO]{\thepage}
 %\fancyhead[LO,RE]{}
 % \usepackage{ae}
+\usepackage[T1]{fontenc} 
 \usepackage[bookmarksopen,colorlinks]{hyperref}
 % \pdfoutput=1
 % \pdfcompresslevel=8
 % \pdfinfo{
 % /Title   ClearSim-RealtTime und Andere
 %  /Creator (Tex)
 %  /Author  (Stefan Eilers)
 %  /Subject ()
 %  /Keywords (Simulation,Real-Time,ClearSim,prototype,efsm)
 % }
-\renewcommand\familydefault{\sfdefault}
-
-\usepackage{multicol}
-\newcommand\NrCol{3}
-\renewenvironment{theindex}
-               {\columnseprule \z@
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-                \@mkboth{\MakeUppercase\indexname}%
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-
-\renewenvironment{theindex}
-               {\if@twocolumn
-                  \@restonecolfalse
-                \else
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-                \parskip\z@ \@plus .3\p@\relax
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-               {\if@restonecol\onecolumn\else\clearpage\fi}
 \end_preamble
 \language american
 \inputencoding default
 \fontscheme ae
 \graphics default
 \float_placement htbp
 \paperfontsize default
 \spacing single 
 \papersize a4paper
 \paperpackage widemarginsa4
 \use_geometry 0
 \use_amsmath 0
 \use_natbib 0
 \use_numerical_citations 0
 \paperorientation portrait
 \secnumdepth 3
 \tocdepth 3
 \paragraph_separation skip
 \defskip medskip
 \quotes_language english
 \quotes_times 2
 \papercolumns 1
 \papersides 2
 \paperpagestyle fancy
 
 \layout Title
 
 How to use the Opie-Pim API without getting tired!
 \newline 
 (Aka: Hitchhikers Guide Through the Opie-Pim API)
 \newline 
-(Pre V 0.1)
+(V 0.2)
 \layout Author
 
 
 \family sans 
-Stefan Eilers
+Stefan Eilers (stefan@eilers-online.net)
 \layout Section*
 
 
 \family sans 
 Abstract
 \layout Standard
 
 The Opie-Pim API provides a powerfull access interface to the PIM (Personal
  Information Management) data which contains your contact information, the
  dates in your calendar tool (in this paper called datebook events) and
  your todo events.
  Beside providing full featured access to this information, it covers the
  real management of this informantion - the access of the databases - from
  the user.
  
 \layout Standard
 
 While starting to read the automatically generated API-documentation, the
  user may be confused by a lot of unnecessary classes and details which
  makes the quick start not as easy as possible.
  Due to the fact that a user will not need most of the details, this paper
  should help to start to become confortable with those details he need to
  solve his problems.
 \layout Standard
 
 
+\series bold 
+You will find a more recent version at: 
+\begin_inset LatexCommand \url{http://www.sra.uni-hannover.de/~eilers/apihowto/pim_howto.pdf}
+
+\end_inset 
+
+
+\layout Standard
+
+
 \begin_inset LatexCommand \tableofcontents{}
 
 \end_inset 
 
 
 \layout Chapter
 
 Introduction
 \layout Standard
 
 Before starting to jump into the work, we should introduce some specialties
  of the PIM API, first.
  To know these facts should help to avoid possible irritations and misunderstand
 ings:
 \layout Enumerate
 
 The PIM-API heavily uses C++ templates (as known as generic classes), but
  you don't have to understand very deeple what templates are doing and how
  they work! Most of the API works without even seeing the templates.
  In some cases we have to use them (for instance to use the factory classes),
  but this guide will provide examples which should help to find the path
  through.
  But it is a good idea to read some short introduction of templates to avoid
  unnecessary mistakes.
@@ -196,92 +175,115 @@ Instantiate the access-object
 
 To gain access to the database you need something we will call
 \emph on 
  access-object
 \emph default 
  (an instance of the access-class for the database) which handles the database
  access.
  Requesting such an object is very easy by using the operation 
 \emph on 
 defaultAccess()
 \emph default 
  of the factory class 
 \series bold 
 OPimAccessFactory
 \series default 
  (see 
 \begin_inset LatexCommand \url{http://www.sra.uni-hannover.de/~eilers/apidocs/pim2/html/classOpie_1_1OPimAccessFactory.html}
 
 \end_inset 
 
 ).
  This operation is defined like this:
 \layout LyX-Code
 
-T* defaultAccess (typename OPimGlobal::PimType type, const QString &appName)
+T* defaultAccess ( 
+\newline 
+typename OPimGlobal::PimType type,
+\newline 
+const QString &appName)
 \layout Standard
 
 You just have to add the following lines to your source code to use it (this
  example is for accessing the contact database):
 \layout LyX-Code
 
+\layout LyX-Code
+
 #include <opie2/opimaccessfactory.h>
 \layout LyX-Code
 
 use namespace Opie;
 \layout Standard
 
 [...]
 \layout LyX-Code
 
-OPimContactAccess* sourceDB = OPimAccessFactory<OPimContactAccess>::defaultAcces
-s( OPimGlobal::CONTACTLIST, "my-app" );
+OPimContactAccess* sourceDB = 
+\newline 
+OPimAccessFactory<OPimContactAccess>::defaultAccess(
+\newline 
+OPimGlobal::CONTACTLIST,
+\newline 
+"my-app" );
+\layout LyX-Code
+
 \layout Standard
 
 If everything works as expected, you will receive a pointer to the contact
  access-class which has to be used for accessing the database.
  Accessing the datebook database works equally
 \begin_inset Foot
 collapsed false
 
 \layout Standard
 
 The API will be changed in the future: ODateBookAccess will be renamed to
  OPimEventAccess.
 \end_inset 
 
 :
 \layout LyX-Code
 
-ODateBookAccess* sourceDB = OPimAccessFactory<ODatebookAccess>::defaultAccess(
- OPimGlobal::DATEBOOK, "my-app" );
+ODateBookAccess* sourceDB = 
+\newline 
+OPimAccessFactory<ODatebookAccess>::defaultAccess(
+\newline 
+OPimGlobal::DATEBOOK,
+\newline 
+"my-app" );
 \layout Standard
 
 And the same for todo:
 \layout LyX-Code
 
-OPimTodoAccess* sourceDB = OPimAccessFactory<OPimTodoAccess>::defaultAccess(
- OPimGlobal::TODOLIST, "my-app" );
+OPimTodoAccess* sourceDB = 
+\newline 
+OPimAccessFactory<OPimTodoAccess>::defaultAccess(
+\newline 
+OPimGlobal::TODOLIST,
+\newline 
+"my-app" );
 \layout Standard
 
 Using 
 \emph on 
 
 \begin_inset Quotes gld
 \end_inset 
 
 defaultAccess()
 \begin_inset Quotes grd
 \end_inset 
 
 
 \emph default 
 , the default database is accessed automatically
 \begin_inset Foot
 collapsed false
 
 \layout Standard
 
 The configuration file 
 \begin_inset Quotes gld
 \end_inset 
 
@@ -464,84 +466,167 @@ collapsed false
 
 \layout Standard
 
 We should check whether all databases behave like this! (se)
 \end_inset 
 
 .
  This may be done after receiving information about any change by an other
  application which is not in scope of this chapter.
  The other operations are self explaining and should work as expected.
 \layout Standard
 
 If you want to work with the existing dataset, you need to get a list of
  all available information.
  This list is returned by the call 
 \begin_inset Quotes gld
 \end_inset 
 
 allRecords()
 \begin_inset Quotes grd
 \end_inset 
 
  which returns a list of all available records as an 
 \series bold 
-OPimRecordList
+OPimRecordList<T>
 \series default 
  (see 
 \begin_inset LatexCommand \url{http://www.sra.uni-hannover.de/~eilers/apidocs/pim2/html/classOpie_1_1OPimRecordList.html}
 
 \end_inset 
 
 ).
- 
+ This OPimRecordList is a template and should be used with the right class
+ parameter 
+\begin_inset Quotes eld
+\end_inset 
+
+T
+\begin_inset Quotes erd
+\end_inset 
+
+ which is currently one of the following: OPimContact, OPimTodo and OPimEvent.
 \layout LyX-Code
 
-List allRecords();
+OPimRecordList<T> allRecords();
 \layout Standard
 
 In fact, this 
-\emph on 
-List
-\emph default 
+\begin_inset Quotes eld
+\end_inset 
+
+OPimRecordList<T>
+\begin_inset Quotes erd
+\end_inset 
+
  just contains a list of uid's to take care of memory space.
- As every record is identified by an unique identification number which
- is called UID (Unique Identification), these numbers just exists once in
- the database which is currently on access! To receive the real record,
- you have to use the operation 
+ Every record is identified by an unique identification number which is
+ called UID (Unique Identification).
+ These numbers just exists once in the database which is currently on access!
+ To receive the real record, you have to use the operation 
 \begin_inset Quotes gld
 \end_inset 
 
 find()
 \begin_inset Quotes grd
 \end_inset 
 
  with a valid UID as parameter:
 \layout LyX-Code
 
 T find (UID uid);
 \layout Standard
 
+The remaining question is, how to get a valid UID out of a list to use the
+ 
+\begin_inset Quotes eld
+\end_inset 
+
+find()
+\begin_inset Quotes erd
+\end_inset 
+
+ in a correct manner.
+ This could be done by requesting a special element of the list, using the
+ operator[] or by using iterators.
+ The first one would be like this
+\begin_inset Foot
+collapsed true
+
+\layout Standard
+
+Please do not forget to use 
+\begin_inset Quotes eld
+\end_inset 
+
+use namespace Opie;
+\begin_inset Quotes erd
+\end_inset 
+
+ to enable the namespace 
+\begin_inset Quotes eld
+\end_inset 
+
+Opie
+\begin_inset Quotes erd
+\end_inset 
+
+!!
+\end_inset 
+
+:
+\layout LyX-Code
+
+OPimRecordList<OPimContact> list = allRecords();
+\layout LyX-Code
+
+for ( int i = 0; i < list.count(); i++ ){
+\layout LyX-Code
+
+    cout << "The UID is: " << list[i] << endl;
+\layout LyX-Code
+
+}
+\layout Standard
+
+Using the iterator is as easy as the previous one:
+\layout LyX-Code
+
+OPimRecordList<OPimContact> list = allRecords();
+\layout LyX-Code
+
+OPimRecordList<OPimContact>::iterator it;
+\layout LyX-Code
+
+for ( it = list.begin(); it != list.end(); ++it ){
+\layout LyX-Code
+
+    count << "The UID is: " << (*it) << endl;
+\layout LyX-Code
+
+}
+\layout Standard
+
 This is all you need to realize a basic access to the PIM-Databases! The
  next chapter will guide you into more details of the PIM-API.
 \layout Chapter
 
 How to Access PIM-Data: Detailed View
 \layout Standard
 
 As shown in the previous chapter, all we need to access the PIM-Database
  is to request an access-object from the OPimAccessFactory and to use it.
  We will now introduce some special features of this factory (see section
  
 \begin_inset LatexCommand \ref{sec:Advanced-Factory-Features}
 
 \end_inset 
 
 ), followed by some very important features like searching and sorting in
  section 
 \begin_inset LatexCommand \ref{sec:Special-Features:-Searching}
 
 \end_inset 
 
 .
  If you are interested in accessing data without take care about their types,
  section 
@@ -732,63 +817,56 @@ fileName
 
 In the next section we will discuss how searching and sorting take place
  with this API.
 \layout Section
 
 Special Features: Searching and Sorting
 \begin_inset LatexCommand \label{sec:Special-Features:-Searching}
 
 \end_inset 
 
 
 \layout Standard
 
 In most cases it is not sufficient to receive just a list of all information
  in a database.
  It is essential to get a subset of the information available and to be
  able to sort it.
  For this kind of exercise we provide some special operations which provide
  searching and sorting in an incremental manner
 \begin_inset Foot
 collapsed false
 
 \layout Standard
 
-FIXME: matchRegexp() does take a list of uid's.
+FIXME: matchRegexp() does not take a list of uid's.
  Therefore it is currently not possible to use it in an incremental manner!
  (se)
 \end_inset 
 
 .
- Therefore it is possible to research a 
-\begin_inset Quotes gld
-\end_inset 
-
-List
-\begin_inset Quotes grd
-\end_inset 
-
- which was returned by a previous search query and to sort it afterwards.
+ Therefore it is possible to use a list which was returned by a previous
+ search query and to sort it afterwards.
  Before we will take a close look into sorting, we will start with searching.
  There exist two different ways of searching:
 \layout Enumerate
 
 Search a complete database for a special regular expression, using 
 \begin_inset Quotes gld
 \end_inset 
 
 matchRegexp ()
 \begin_inset Quotes grd
 \end_inset 
 
 .
  This search type returns all records which contains the given regular expressio
 n 
 \emph on 
 anywhere
 \emph default 
  in the dataset.
  This search type is used for example by the opie search tool (OSearch)
  (see 
 \begin_inset LatexCommand \url{http://handhelds.org/cgi-bin/cvsweb.cgi/opie/core/pim/osearch/}
 
 \end_inset 
@@ -819,169 +897,154 @@ We will start with the first and very simple
 \begin_inset Quotes grd
 \end_inset 
 
 matchRegexp()
 \begin_inset Quotes grd
 \end_inset 
 
 , followed by the query by example search query.
 \layout Subsection
 
 Searching with 
 \begin_inset Quotes gld
 \end_inset 
 
 matchRegexp()
 \begin_inset Quotes grd
 \end_inset 
 
 
 \layout Standard
 
 The function is defined like this:
 \layout LyX-Code
 
-List matchRegexp (const QRegExp& r);
+OPimRecordList<T> matchRegexp (const QRegExp& r);
 \layout Standard
 
 The 
 \begin_inset Quotes gld
 \end_inset 
 
-List
+OPimRecordList<T>
 \begin_inset Quotes grd
 \end_inset 
 
- is still a OPimRecordList which contains 0 or more uid's of matching records.
+ is still a list which contains 0 or more uid's of matching records.
  As already discussed in section 
 \begin_inset LatexCommand \ref{sec:Accessing-the-access-object}
 
 \end_inset 
 
  you have to use the 
 \begin_inset Quotes gld
 \end_inset 
 
 find()
 \begin_inset Quotes grd
 \end_inset 
 
  operation to request the real records.
 \layout Subsection
 
 Searching with Query By Example
 \layout Standard
 
 The query by example search style is working is using a data object (for
  instance an OPimContact) to store the search query.
  For instance, if you want to request all entries which contains the last
  name 
 \begin_inset Quotes gld
 \end_inset 
 
 Eilers
 \begin_inset Quotes grd
 \end_inset 
 
  and the home zip number should start with 
 \begin_inset Quotes gld
 \end_inset 
 
 3
 \begin_inset Quotes grd
 \end_inset 
 
  you have to do the following:
 \layout LyX-Code
 
 OPimContact searchQuery;
 \layout LyX-Code
 
-searchQuery.setLastName( 
-\begin_inset Quotes eld
-\end_inset 
-
-Eilers
-\begin_inset Quotes erd
-\end_inset 
-
- );
+searchQuery.setLastName( "Eilers" );
 \layout LyX-Code
 
-searchQuery.setHomeZip( 
-\begin_inset Quotes eld
-\end_inset 
-
-3*
-\begin_inset Quotes srd
-\end_inset 
-
- );
+searchQuery.setHomeZip( "3*" );
 \layout Standard
 
 We use an usual 
 \begin_inset Quotes gld
 \end_inset 
 
 OPimContact
 \begin_inset Quotes grd
 \end_inset 
 
  and fill into two fields the query information.
  All filled fields are taken for the search operation (using an 
 \begin_inset Quotes gld
 \end_inset 
 
 AND
 \begin_inset Quotes grd
 \end_inset 
 
  operation), the unused ones are simply ignored.
  As we just want to search for entries which zip number starts with a 
 \begin_inset Quotes gld
 \end_inset 
 
 3
 \begin_inset Quotes grd
 \end_inset 
 
  we use the Wildcard 
 \begin_inset Quotes gld
 \end_inset 
 
 *
 \begin_inset Quotes grd
 \end_inset 
 
  as we would do to find files in a filesystem.
 \layout Standard
 
 The next step is to put this query into the operation which is defined like
  this:
 \layout LyX-Code
 
-List queryByExample (const T& query, int querySettings, const QDateTime&
- startperiod=QDateTime())
+OPimRecordList<T> queryByExample (const T& query,
+\newline 
+int querySettings, const QDateTime& startperiod=QDateTime())
 \layout Standard
 
 The first parameter 
 \begin_inset Quotes gld
 \end_inset 
 
 query
 \begin_inset Quotes grd
 \end_inset 
 
  should used to set our query, but we have to set the parameter 
 \begin_inset Quotes gld
 \end_inset 
 
 querySettings
 \begin_inset Quotes grd
 \end_inset 
 
  to configure the search properly.
  This settings are defined by the enumeration 
 \begin_inset Quotes gld
 \end_inset 
 
 QuerySettings
@@ -1049,50 +1112,53 @@ IgnoreCase
 \end_inset 
 
 or
 \begin_inset Quotes grd
 \end_inset 
 
  operator.
  The last parameter 
 \begin_inset Quotes gld
 \end_inset 
 
 endperiod
 \begin_inset Quotes grd
 \end_inset 
 
  will be ignored for this case which will look like this:
 \layout LyX-Code
 
 use namespace Opie;
 \layout LyX-Code
 
 [...]
 \layout LyX-Code
 
-List found_items = queryByExample( searchQuery, OPimBase::WildCards | OpimBase::
-IgnoreCase );
+OPimRecordList<OPimContact> found_items = 
+\newline 
+sourceDB->queryByExample( searchQuery, 
+\newline 
+OPimBase::WildCards | OpimBase::IgnoreCase );
 \layout Standard
 
 This operation may return a list of entries which can be accessed as above,
  using the 
 \begin_inset Quotes gld
 \end_inset 
 
 find()
 \begin_inset Quotes grd
 \end_inset 
 
  operation.
 \layout Standard
 
 It should be clear at this stage, that this query is very powerful and -
  depending to the querySettings - could be very complicated to implement.
  Thus, not all backends do support all features defined by querySettings
 \begin_inset Foot
 collapsed false
 
 \layout Standard
 
 At this time, just the contact database for XML and VCard is supporting
  all queries and combination of them.
@@ -1196,53 +1262,61 @@ If you want to do incremental search operations, you may use the special
  
 \begin_inset Quotes gld
 \end_inset 
 
 queryByExample()
 \begin_inset Quotes grd
 \end_inset 
 
  which takes a 
 \begin_inset Quotes gld
 \end_inset 
 
 List
 \begin_inset Quotes grd
 \end_inset 
 
  as the first parameter.
  The search operation will just occur on this set of uid's!
 \layout Subsection
 
 Sorting
 \layout Standard
 
 To sort a given dataset, you should use the following operation (or one
- of the others which behave slightly differently):
+ of the others which behave slightly differently, see 
+\begin_inset LatexCommand \url{http://www.sra.uni-hannover.de/~eilers/apidocs/pim2/html/classOpie_1_1OPimAccessTemplate.html}
+
+\end_inset 
+
+):
 \layout LyX-Code
 
-List sorted (const List& list, bool ascending, int sortOrder, int sortFilter,
- const QArray< UID >& cats);
+OPimRecordList<T> sorted (const List& list, 
+\newline 
+bool ascending, int sortOrder, int sortFilter, 
+\newline 
+const QArray< UID >& cats);
 \layout Standard
 
 This sort operation takes a list of uid's as returned for instance from
  a search query.
  The parameter 
 \begin_inset Quotes gld
 \end_inset 
 
 ascending
 \begin_inset Quotes grd
 \end_inset 
 
  defines whether the sort should be in an ascending order or not.
  
 \begin_inset Quotes gld
 \end_inset 
 
 sortOrder
 \begin_inset Quotes grd
 \end_inset 
 
  is defined by the enumerations 
 \begin_inset Quotes gld
 \end_inset