Home >	Contents >	Index >
Template Tag TOC  |   Alpha TOC  |   Tag Family TOC  |   Purpose TOC  |   Annotated TOC  |   Index

INDEXEXISTS

Use this tag to check for the existence of an index.

Syntax

<INDEXEXISTS INDEX="INDEX_NAME"
             [CHARACTERSET="CHAR_SET"]
             [SEARCHENGINE="NAME"]/>

Parameters

INDEX (required)

Full path name of the index to check.

CHARACTERSET (optional)

Constant value representing the character set the index uses.

For the AltaVista search engine this value may be 0, 1, or 2 (ISO_LATIN1, ASCII8, UTF8). If you do not specify CHARACTERSET, Content Server uses the value of av.charset in the Content Server properties file.

Because Java Strings are transformed to UTF8, as they pass through the JNI interface to AltaVista, the 0 value only works for 7-bit ASCII. For all other cases, use the value for UTF8.

For the Verity search engine, this value specifies the name of the subdirectory of the common directory where the locale is defined. If you do not specify CHARACTERSET, Content Server uses the value of verity.charset in the Content Server properties file.

SEARCHENGINE (optional)

Name of the search engine to use. If SEARCHENGINE is not specified, Content Server uses the value of cs.searchengine from the Content Server properties file.

errno

The possible values of errno include:

Value	Description
9	Index exists.
-806	Unknown search engine.
-812	Index does not exist.

Example

The following example checks for the existence of c:ArticleIdx and creates it if it doesn't exist.

<SETVAR NAME="errno" VALUE="0"/>
<INDEXEXISTS INDEX="c:/ArticleIdx" 
             SEARCHENGINE="AV"/>
<IF COND="Variables.errno!=9">
   <THEN>
       <INDEXCREATE INDEX="c:/ArticleIdx" 
                    SEARCHENGINE="AV"/>
   </THEN>
</IF>

See Also

INDEXCREATE

		Home >	Contents >	Index >
	FatWire XML Tag Reference Copyright 2005 by FatWire Software All rights reserved.