EL expression for accessing a set?

[jamesjmp]

Hi,
I wonder if there is an EL expression for accessing a set?
For instance, I´ve this objects:

public class AssetType implements java.io.Serializable {

 private long idAsset;
 private String type;

 private Set<Instrument> instruments = new HashSet<Instrument>(0);
...

public class Instrument implements java.io.Serializable {

 private String securityName;
..

In a xhtml I want to display the securityNameof the first item in the instruments set.

Something like this, but it doesn´t work

#{assetType[0].internalOptionNumber}

In java, it´s easy, for instance to display all of them: (yeah, I know an iterator would be fine as well, this is just a sample way of accessing)

 public String getSecurityName() {
 System.out.println("getSecurityName - getInstruments size:"+instruments.size());
 String secName ="";
 for( Instrument ins : instruments ) {
 secName = ins.getSecurityName();
 System.out.println("SecurityName" + secName );
 }
 return secName;
 }

Any way to access a set from an EL expression?
thanks in advance!

[sstrenn]

If your object is an entity and you don't have a particular reason to store the instruments as a Set (other than that is how seam-gen built the entity), you might consider just changing the Set<> to a List<> and HashSet<> to an ArrayList<>. The persistence stuff will still work fine, and so will tags like <rich:dataTable>.

You can check out https://www.cs.sbcc.edu/strenn/cs129/Assn%20-%20Display%20Sales%20Order/Assn%20-%20Display%20Sales%20Order.htm
(Option A, section 2.8) for more concrete instructions.

Good luck.