returning a linkedhashset to xpage as multivalue

Question

In a my applications I have defined a property of an object as a LinkedHashSet. The property I fill with values from a multi-value field:

Vector<String> ctrs = doc.getItemValue("countries");        
LinkedHashSet<String> items = new LinkedHashSet<String>();      
for (int i = 0; i < ctrs.size(); i++){          
    items.add(ctrs.get(i));
}       
employee.setCountry(items);

On an XPage I would like to display the values as followed:

<xp:inputText id="inputCountries" value="#{employeeBean.employee.Country}">
    <xp:this.multipleSeparator><![CDATA[#{javascript:var val = getComponent("contractType").getValue();
if (val == "Multi"){
    return ",";
}}]]></xp:this.multipleSeparator>
</xp:inputText>

Depending on the type of employee this field may be single or multi-value.

When view the XPage the returned value is displayed as followed:

[Sweden, Denmark, Estonia]

Ofcourse I would have it displayed as multi-value. What should I do to correct this?

Answer 1

If you convert your HashSet to an Array then it should work

Here an example, the first as single/ the second as multi value field:

<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core">

    <xp:inputText id="singleValue" multipleSeparator=",">
        <xp:this.value><![CDATA[#{javascript:var items:java.util.Set = new java.util.LinkedHashSet();
items.add("Sweden");      
return items.toArray();}]]>
        </xp:this.value>
    </xp:inputText>

    <br></br>
    <br></br>

    <xp:inputText id="multiValue" multipleSeparator=",">
        <xp:this.value><![CDATA[#{javascript:var items:java.util.Set = new java.util.LinkedHashSet();
items.add("Sweden");
items.add("Denmark");  
items.add("Estonia");
return items.toArray();}]]>
        </xp:this.value>
    </xp:inputText>

</xp:view>

The output on a browser looks like:

Sweden

Sweden,Denmark,Estonia