Example usage for org.apache.commons.collections OrderedMap firstKey

Introduction

In this page you can find the example usage for org.apache.commons.collections OrderedMap firstKey.

Prototype

public Object firstKey();

Source Link

Document

Gets the first key currently in this map.

Usage

From source file:edu.harvard.iq.dvn.core.web.StudyListing.java

public static String addToStudyListingMap(StudyListing sl, Map sessionMap) {
    Long slCount = (Long) sessionMap.get("studyListingsCount");
    OrderedMap slMap = (OrderedMap) sessionMap.get("studyListings");
    String sessionId = ((HttpSession) FacesContext.getCurrentInstance().getExternalContext().getSession(false))
            .getId();//  w w  w. j  a v a  2 s  .  c  o m

    if (slCount == null) {
        slCount = new Long(0);

    } else {
        slCount = slCount + 1;
    }

    if (slMap == null) {
        slMap = new LinkedMap();
        sessionMap.put("studyListings", slMap);
    }

    sessionMap.put("studyListingsCount", slCount);
    String newIndex = slCount + "_" + sessionId;
    slMap.put(newIndex, sl);

    if (slMap.size() > 5) {
        slMap.remove(slMap.firstKey());
    }

    return newIndex;
}

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