root

    | [ _docuid      ]		{EStoreYes | EIndexUnTokenized}

    | [ _appclass    ]		{EStoreYes | EIndexTokenized}	

    | [ _appclass_ut ]		{EStoreNo  | EIndexUnTokenized}

    | [ _aggregate   ]      {EStoreNo  | EIndexUnTokenized} 	

    | [ _excerpt     ]		{EStoreYes | EIndexNo}

    | [ _mimetype (opt) ]	{EStoreYes | EIndexNo}

    |

    +-- msg

    | [ To     		]	{EStoreYes | EIndexTokenized}

    | [ From   		]	{EStoreYes | EIndexTokenized}

    | [ Body   		]	{EStoreYes | EIndexTokenized}

    | [ Folder 		]	{EStoreYes | EIndexNo}

    | [ Subject 	] 	{EStoreYes | EIndexTokenized}

    |

    |

    +-- file

    |     |

    | 		|

    |			|

    |			  [ Extension ]     {EStoreYes | EIndexUnTokenized}

    |

    |      

    +-- media

    |     | 

    |     |

    |     +-- audio

    |     | [ Name           ]	{EStoreYes | EIndexTokenized}

    |     | [ MediaId        ]	{EStoreYes | EIndexUnTokenized}

    |     | [ Title          ]  {EStoreYes | EIndexTokenized}

    |     | [ ItemType       ]  {EStoreYes | EIndexUnTokenized}

    |     | [ Extension      ]  {EStoreYes | EIndexTokenized}

    |     | [ Album          ]  {EStoreYes | EIndexTokenized}

    |	    | [ AlbumArtist    ]	{EStoreYes | EIndexTokenized}

    |     | [ OriginalArtist ]	{EStoreYes | EIndexTokenized}

    |     | [ Composer       ]	{EStoreYes | EIndexTokenized}

    |     | [ Artist         ]	{EStoreYes | EIndexTokenized}

    |     | 

    |     |

    |     +-- image

    |     | [ Name           ]	{EStoreYes | EIndexTokenized}

    |     | [ MediaId        ]	{EStoreYes | EIndexUnTokenized}

    |     | [ Title          ]  {EStoreYes | EIndexTokenized}

    |     | [ ItemType       ]  {EStoreYes | EIndexUnTokenized}

    |     | [ Extension      ]  {EStoreYes | EIndexTokenized}    

    |     | [ Comment        ]  {EStoreYes | EIndexTokenized}

    |     | [ DateTimeOrignal]	{EStoreYes | EIndexUnTokenized}

    |     |

    |     |    

    |     +-- video

    |	      [ Name           ]	{EStoreYes | EIndexTokenized}

    |       [ MediaId        ]	{EStoreYes | EIndexUnTokenized}

    |       [ Title          ]  {EStoreYes | EIndexTokenized}

    |       [ ItemType       ]  {EStoreYes | EIndexUnTokenized}

    |       [ Extension      ]  {EStoreYes | EIndexTokenized}

    |	      [ Artist         ]  {EStoreYes | EIndexTokenized}

    |       [ Author         ]	{EStoreYes | EIndexTokenized}

    |       [ Copyright      ]  {EStoreYes | EIndexTokenized}

    |       [ Description    ]	{EStoreYes | EIndexTokenized}

    |	      [ Comment        ]	{EStoreYes | EIndexTokenized}  

    |

    |

    +-- contact

    | [ GivenName   		]	{EStoreYes | EIndexTokenized}

    | [ FamilyName  		]	{EStoreYes | EIndexTokenized}	

    | [ CompanyName 		]	{EStoreYes | EIndexTokenized}

    | [ PhoneNumber 		]	{EStoreYes | EIndexTokenized}

    | [ Address     		]	{EStoreYes | EIndexTokenized}

    | [ Note        		]	{EStoreYes | EIndexTokenized}

    | [ JobTitle    		]	{EStoreYes | EIndexTokenized}

    | [ SecondName  		]	{EStoreYes | EIndexTokenized}

    | [ Suffix      		]	{EStoreYes | EIndexTokenized}

    | [ EMail       		]	{EStoreYes | EIndexTokenized}

    | [ URL         		]	{EStoreYes | EIndexTokenized}

    | [ PostOffice  		]	{EStoreYes | EIndexTokenized}

    | [ ExtendedAddress  	]	{EStoreYes | EIndexTokenized}

    | [ Locality  		]	{EStoreYes | EIndexTokenized}

    | [ Region  		]	{EStoreYes | EIndexTokenized}

    | [ PostCode  		]	{EStoreYes | EIndexTokenized}

    | [ Country  		]	{EStoreYes | EIndexTokenized}

    | [ SIPID  			]	{EStoreYes | EIndexTokenized}

    | [ Spouse  		]	{EStoreYes | EIndexTokenized}

    | [ Children  		]	{EStoreYes | EIndexTokenized}

    | [ Class  			]	{EStoreYes | EIndexTokenized}	

    | [ Prefix  		]	{EStoreYes | EIndexTokenized}

    | [ AdditionalName  	]	{EStoreYes | EIndexTokenized}

    | [ Fax  			]	{EStoreYes | EIndexTokenized}

    | [ GivenNamePronunciation 	]	{EStoreYes | EIndexTokenized}

    | [ FamilyNamePronunciation ]	{EStoreYes | EIndexTokenized}

    | [ CompanyNamePronunciation]	{EStoreYes | EIndexTokenized}

    |

    |

    +-- calendar

    | [ Summary     	]   	{EStoreYes | EIndexTokenized}

    | [ Description 	]	{EStoreYes | EIndexTokenized}

    | [ Location    	]	{EStoreYes | EIndexTokenized}

    | [ StartTime   	] (YYYYMMDDHHSS) (TimeZone UTC)	{EStoreYes | EIndexUnTokenized}

    | [ EndTime     	] (YYYYMMDDHHSS) (TimeZone UTC)	{EStoreYes | EIndexUnTokenized}

    | 

    |    

    +-- bookmark

    | [ Name       ] 		{EStoreYes | EIndexTokenized}

    | [ Url 	   ] 		{EStoreYes | EIndexTokenized} 

    |

    +-- applications

    | [ Name       ]       	{EStoreYes | EIndexTokenized}

    | [ Uid        ]       	{EStoreYes | EIndexTokenized}

    | [ Path       ]       	{EStoreYes | EIndexTokenized}

    |

    +-- notes

    | [ Date       ]  (YYYYMMDDHHSS)  {EStoreYes | EIndexUnTokenized}

    | [ Memo       ]       	{EStoreYes | EIndexTokenized}

For instance, a document for an email message should have the

appclass value defined as "root msg email" (with spaces in between the

words). SMS message would have it as "root msg phone sms".

If SMS, MMS and email messages originated from the same messenger

application and are indexed to the same indexed database, then the

appclass value given to the IdxDb retrieval call would be the common

denominator, which is "root msg", as well as the baseAppClass value

for creating the index would be the same, "root msg".

The field names are also put under the corresponding app classes. Some

field names are for system use, so they are defined on the root class,

prefixed with underscore to avoid name clashes. Application specific

harvesters should use names without underscore prefixes.

The exact hierarchy will undergo some obvious evolution, its structure

and the field names are up to the harvesters. However, the

preinstalled application suites should define a neatly structured

hieararchy facilitating flexible and sensible search narrowing and

widening.

NOTE: Later cpix library versions provide the feuture of searching any

field, one just have to use cpix_DEFAULT_FIELd field name (when

creating the cpix_QueryParser instance).