App::Info::RDBMS::SQLite(3pm)				User Contributed Perl Documentation			     App::Info::RDBMS::SQLite(3pm)

NAME

       App::Info::RDBMS::SQLite - Information about SQLite

SYNOPSIS

	 use App::Info::RDBMS::SQLite;

	 my $sqlite = App::Info::RDBMS::SQLite->new;

	 if ($sqlite->installed) {
	     print "App name: ", $sqlite->name, "
";
	     print "Version:  ", $sqlite->version, "
";
	     print "Bin dir:  ", $sqlite->bin_dir, "
";
	 } else {
	     print "SQLite is not installed. :-(
";
	 }

DESCRIPTION

       App::Info::RDBMS::SQLite supplies information about the SQLite application installed on the local system. It implements all of the methods
       defined by App::Info::RDBMS. Methods that trigger events will trigger them only the first time they're called (See App::Info for
       documentation on handling events). To start over (after, say, someone has installed SQLite) construct a new App::Info::RDBMS::SQLite object
       to aggregate new meta data.

       Some of the methods trigger the same events. This is due to cross-calling of shared subroutines. However, any one event should be triggered
       no more than once. For example, although the info event "Executing `pg_config --version`" is documented for the methods "name()",
       "version()", "major_version()", "minor_version()", and "patch_version()", rest assured that it will only be triggered once, by whichever of
       those four methods is called first.

INTERFACE

   Constructor
       new

	 my $sqlite = App::Info::RDBMS::SQLite->new(@params);

       Returns an App::Info::RDBMS::SQLite object. See App::Info for a complete description of argument parameters.

       When it called, "new()" searches the directories returned by search_bin_dirs for an executable with a name returned by "search_exe_names".
       If found, it will be called by the object methods below to gather the data necessary for each. If it cannot be found, then "new()" will
       attempt to load DBD::SQLite or DBD::SQLite2. These DBI drivers have SQLite embedded in them but do not install the application. If these
       fail, then SQLite is assumed not to be installed, and each of the object methods will return "undef".

       Events:

       info
	   Looking for SQLite.

       confirm
	   Path to SQLite executable?

       unknown
	   Path to SQLite executable?

   Class Method
       key_name

	 my $key_name = App::Info::RDBMS::SQLite->key_name;

       Returns the unique key name that describes this class. The value returned is the string "SQLite".

   Object Methods
       installed

	 print "SQLite is ", ($sqlite->installed ? '' : 'not '), "installed.
";

       Returns true if SQLite is installed, and false if it is not.

       App::Info::RDBMS::SQLite determines whether SQLite is installed based on the presence or absence of the sqlite3 or sqlite application on
       the file system as found when "new()" constructed the object. If SQLite does not appear to be installed, then all of the other object
       methods will return empty values.

       name

	 my $name = $sqlite->name;

       Returns the name of the application. App::Info::RDBMS::SQLite simply returns the value returned by "key_name" if SQLite is installed, and
       "undef" if it is not installed.

       version

	 my $version = $sqlite->version;

       Returns the SQLite version number. App::Info::RDBMS::SQLite parses the version number from the system call "`sqlite -version`" or retrieves
       it from DBD::SQLite.

       Events:

       info
	   Executing `sqlite -version`

       error
	   Failed to find SQLite version with `sqlite -version`

	   Failed to retrieve SQLite version from DBD::SQLite

	   Unable to parse name from string

	   Unable to parse version from string

	   Failed to parse SQLite version parts from string

       unknown
	   Enter a valid SQLite version number

       major version

	 my $major_version = $sqlite->major_version;

       Returns the SQLite major version number. App::Info::RDBMS::SQLite parses the version number from the system call "`sqlite -version`" or
       retrieves it from DBD::SQLite. For example, if "version()" returns "3.0.8", then this method returns "3".

       Events:

       info
	   Executing `sqlite -version`

       error
	   Failed to find SQLite version with `sqlite -version`

	   Failed to retrieve SQLite version from DBD::SQLite

	   Unable to parse name from string

	   Unable to parse version from string

	   Failed to parse SQLite version parts from string

       unknown
	   Enter a valid SQLite version number

       minor version

	 my $minor_version = $sqlite->minor_version;

       Returns the SQLite minor version number. App::Info::RDBMS::SQLite parses the version number from the system call "`sqlite -version`" or
       retrieves it from DBD::SQLite. For example, if "version()" returns "3.0.8", then this method returns "0".

       Events:

       info
	   Executing `sqlite -version`

       error
	   Failed to find SQLite version with `sqlite -version`

	   Failed to retrieve SQLite version from DBD::SQLite

	   Unable to parse name from string

	   Unable to parse version from string

	   Failed to parse SQLite version parts from string

       unknown
	   Enter a valid SQLite version number

       patch version

	 my $patch_version = $sqlite->patch_version;

       Returns the SQLite patch version number. App::Info::RDBMS::SQLite parses the version number from the system call "`sqlite -version`" or
       retrieves it from DBD::SQLite. For example, if "version()" returns "3.0.8", then this method returns "8".

       Events:

       info
	   Executing `sqlite -version`

       error
	   Failed to find SQLite version with `sqlite -version`

	   Failed to retrieve SQLite version from DBD::SQLite

	   Unable to parse name from string

	   Unable to parse version from string

	   Failed to parse SQLite version parts from string

       unknown
	   Enter a valid SQLite version number

       executable

	 my $executable = $sqlite->executable;

       Returns the path to the SQLite executable, usually sqlite3 or sqlite, which will be defined by one of the names returned
       by"search_exe_names()".	The executable is searched for in "new()", so there are no events for this method.

       bin_dir

	 my $bin_dir = $sqlite->bin_dir;

       Returns the SQLite binary directory path. App::Info::RDBMS::SQLite simply retrieves it as the directory part of the path to the SQLite
       executable.

       lib_dir

	 my $lib_dir = $expat->lib_dir;

       Returns the directory path in which an SQLite library was found. The directory path will be one of the values returned by
       "search_lib_dirs()", where a file with a name as returned by "search_lib_names()" was found. No search is performed if SQLite is not
       installed or if only DBD::SQLite is installed.

       Events:

       info
	   Searching for shared object library directory

       error
	   Cannot find shared object library directory

       unknown
	   Enter a valid Expat shared object library directory

       so_lib_dir

	 my $so_lib_dir = $expat->so_lib_dir;

       Returns the directory path in which an SQLite shared object library was found. The directory path will be one of the values returned by
       "search_lib_dirs()", where a file with a name as returned by "search_so_lib_names()" was found. No search is performed if SQLite is not
       installed or if only DBD::SQLite is installed.

       Events:

       info
	   Searching for shared object library directory

       error
	   Cannot find shared object library directory

       unknown
	   Enter a valid Expat shared object library directory

       inc_dir

	 my $inc_dir = $sqlite->inc_dir;

       Returns the directory path in which an SQLite include file was found. The directory path will be one of the values returned by
       "search_inc_dirs()", where a file with a name as returned by "search_inc_names()" was found. No search is performed if SQLite is not
       installed or if only DBD::SQLite is installed.

       Events:

       info
	   Searching for include directory

       error
	   Cannot find include directory

       unknown
	   Enter a valid SQLite include directory

       home_url

	 my $home_url = $pg->home_url;

       Returns the PostgreSQL home page URL.

       download_url

	 my $download_url = $pg->download_url;

       Returns the PostgreSQL download URL.

       search_exe_names

	 my @search_exe_names = $sqlite->search_exe_names;

       Returns a list of possible names for the SQLite executable. The names are sqlite3 and sqlite by default (sqlite3.exe and sqlite.exe on
       Win32).

       search_bin_dirs

	 my @search_bin_dirs = $sqlite->search_bin_dirs;

       Returns a list of possible directories in which to search an executable. Used by the "new()" constructor to find an executable to execute
       and collect application info. The found directory will also be returned by the "bin_dir" method.

       search_lib_names

	 my @seach_lib_names = $self->search_lib_nams

       Returns a list of possible names for library files. Used by "lib_dir()" to search for library files. By default, the list is:

       libsqlite3.a
       libsqlite3.la
       libsqlite3.so
       libsqlite3.so.0
       libsqlite3.so.0.0.1
       libsqlite3.dylib
       libsqlite3.0.dylib
       libsqlite3.0.0.1.dylib
       libsqlite.a
       libsqlite.la
       libsqlite.so
       libsqlite.so.0
       libsqlite.so.0.0.1
       libsqlite.dylib
       libsqlite.0.dylib
       libsqlite.0.0.1.dylib

       search_so_lib_names

	 my @seach_so_lib_names = $self->search_so_lib_nams

       Returns a list of possible names for shared object library files. Used by "so_lib_dir()" to search for library files. By default, the list
       is:

       libsqlite3.so
       libsqlite3.so.0
       libsqlite3.so.0.0.1
       libsqlite3.dylib
       libsqlite3.0.dylib
       libsqlite3.0.0.1.dylib
       libsqlite.so
       libsqlite.so.0
       libsqlite.so.0.0.1
       libsqlite.dylib
       libsqlite.0.dylib
       libsqlite.0.0.1.dylib

       search_lib_dirs

	 my @search_lib_dirs = $sqlite->search_lib_dirs;

       Returns a list of possible directories in which to search for libraries. By default, it returns all of the paths in the "libsdirs" and
       "loclibpth" attributes defined by the Perl Config module -- plus /sw/lib (in support of all you Fink users out there).

       search_inc_names

	 my @search_inc_names = $sqlite->search_inc_names;

       Returns a list of include file names to search for. Used by "inc_dir()" to search for an include file. By default, the names are sqlite3.h
       and sqlite.h.

       search_inc_dirs

	 my @search_inc_dirs = $sqlite->search_inc_dirs;

       Returns a list of possible directories in which to search for include files.  Used by "inc_dir()" to search for an include file. By
       default, the directories are:

       /usr/local/include
       /usr/include
       /sw/include

BUGS

       Please send bug reports to <bug-app-info@rt.cpan.org> or file them at <http://rt.cpan.org/NoAuth/Bugs.html?Dist=App-Info>.

AUTHOR

       David Wheeler <david@justatheory.com>

SEE ALSO

       App::Info documents the event handling interface.

       App::Info::RDBMS is the App::Info::RDBMS parent class from which App::Info::RDBMS::SQLite inherits.

       DBD::SQLite is the DBI driver for connecting to SQLite databases.

       <http://www.sqlite.org/> is the SQLite home page.

COPYRIGHT AND LICENSE

       Copyright (c) 2004-2008, David Wheeler. Some Rights Reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.10.1							    2011-03-15					     App::Info::RDBMS::SQLite(3pm)