Dynamic FOI in Oracle Maps

Question

Hi!!
I´m trying to use in the Oracle Maps a theme based FOI setting parameters dinamically,
to show some features, according to the user preference. But, what I obtain is zero or all
features.
I changed the code in tutorial to our specific names, except that the in tutorial the names
of cities are VARCHAR and I use an attribute named ID_TIPO which is NUMBER.
The resulting code is below:
var list=document.getElementById("idlist");
var parameters="";
for (var i=1;i<list.options.length;i++ )
parameters=parameters+list.options.value+",";
if (parameters.length>0)
parameters=parameters.substring(0,parameters.length-1);
var marrayPara = new ArrayParameter(parameters,'sarray','tipos_list');
var themebasedfoi=mapview.getThemeBasedFOI("themebasedfoi1");
if (themebasedfoi==null)
themebasedfoi = new MVThemeBasedFOI('themebasedfoi1','mapoteca.TESTE');
themebasedfoi.setQueryParameters(marrayPara);
themebasedfoi.setBringToTopOnMouseOver(true);
mapview.addThemeBasedFOI(themebasedfoi);
else
themebasedfoi.setQueryParameters(marrayPara);
themebasedfoi.setBringToTopOnMouseOver(true);
themebasedfoi.refresh() ;
Tipos_list is defined as
create or replace type tipos_list as table of number(38);
The theme is defined as
<styling_rules>
<rule column="ID_TIPO">
<features style="V.SHAPES_METADADOS"> (id_tipo in (select column_value from table(:1)))) </features>
</rule>
</styling_rules>
In
var marrayPara = new ArrayParameter(parameters,'sarray','tipos_list');
what is the meaning of the 2nd parameter?
Xks.
Oscar

Answer 1

You should use 'narray' as the second parameter in the ArrayParameter constructor. 'sarray' means the array is a VARRAY of VARCHAR2. 'narray' means the array is a VARRAY of NUMBER. I know that ArrayParameter is missing from the API doc. It's our fault. Here is the description that we forgot to include in the API doc.
ArrayParameter(<String> array,<String> elementType, <String> sqlType)
Parameters:
array - a string that specifies the value of the array parameter. If the binding parameter is a number array, it should be specified in the form of num1,num2,...,numN. If the binding variable is a string array, it should be specified in the form of "str1", "str2", ...,"strN". The double quote " inside a string element must be escaped as \". A number array example: 1,2,3,4,5. A string array example: "abc","dadf","asdf\"asdf".
elementType - a string that specifies the type of the array elements. It can be either "narray" (number array) or "sarray" (string array).
sqlType - a string that specifies the name of SQL VARRAY type corresponding to the array parameter.
Returns:
The newly created ArrayParameter FOI object.