Examples of org.datanucleus.util.SoftValueMap

org.datanucleus.util.SoftValueMap
A java.util.Map implementation with soft values.
The values are stored as soft references. If map entry value object is not actively being used, i.e. no other object has a strong reference to it, it may become garbage collected at the discretion of the garbage collector (typically if the VM is low on memory). If this happens, the entry in the SoftValueMap corresponding to the value object will also be removed. @see SoftReference

        String ext = (String)query.getExtension(Query.EXTENSION_RESULT_CACHE_TYPE);
        if (ext != null)
        {
            if (ext.equalsIgnoreCase("soft"))
            {
                resultsObjsByIndex = new SoftValueMap();
            }
            else if (ext.equalsIgnoreCase("weak"))
            {
                resultsObjsByIndex = new WeakValueMap();
            }

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    Boolean getCachedIsToCallPostLoadFetchPlan(AbstractClassMetaData cmd, BitSet loadedFields) 
    {
        if (isToCallPostLoadFetchPlanByCmd == null)
        {
            isToCallPostLoadFetchPlanByCmd = new SoftValueMap();
        }
        Map cachedIsToCallPostLoadFetchPlan = isToCallPostLoadFetchPlanByCmd.get(cmd);
        if (cachedIsToCallPostLoadFetchPlan==null)
        {
            return null;

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    void cacheIsToCallPostLoadFetchPlan(AbstractClassMetaData cmd, BitSet loadedFields, Boolean itcplfp)
    {
        if (isToCallPostLoadFetchPlanByCmd == null)
        {
            isToCallPostLoadFetchPlanByCmd = new SoftValueMap();
        }
        Map cachedIsToCallPostLoadFetchPlan = isToCallPostLoadFetchPlanByCmd.get(cmd);
        if (cachedIsToCallPostLoadFetchPlan == null)
        {
            cachedIsToCallPostLoadFetchPlan = new SoftValueMap();
            isToCallPostLoadFetchPlanByCmd.put(cmd, cachedIsToCallPostLoadFetchPlan);
        }
        cachedIsToCallPostLoadFetchPlan.put(loadedFields, itcplfp);
    }

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    void invalidateCachedIsToCallPostLoadFetchPlan(AbstractClassMetaData cmd)
    {
        if (isToCallPostLoadFetchPlanByCmd == null)
        {
            isToCallPostLoadFetchPlanByCmd = new SoftValueMap();
        }
        Map cachedIsToCallPostLoadFetchPlan = isToCallPostLoadFetchPlanByCmd.get(cmd);
        if (cachedIsToCallPostLoadFetchPlan != null)
        {
            cachedIsToCallPostLoadFetchPlan.clear();

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        String ext = (String)query.getExtension("datanucleus.query.resultCache.type");
        if (ext != null)
        {
            if (ext.equalsIgnoreCase("soft"))
            {
                results = new SoftValueMap();
            }
            else if (ext.equalsIgnoreCase("strong"))
            {
                results = new HashMap();
            }

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    }




    protected ReferenceValueMap newReferenceValueMap()
    {
        return new SoftValueMap();
    }

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    private void cacheIsToCallPostLoadFetchPlan(AbstractClassMetaData cmd, BitSet loadedFields, Boolean itcplfp)
    {
        Map cachedIsToCallPostLoadFetchPlan = (Map) isToCallPostLoadFetchPlanByCmd.get(cmd);
        if (cachedIsToCallPostLoadFetchPlan==null)
        {
            cachedIsToCallPostLoadFetchPlan = new SoftValueMap();
            isToCallPostLoadFetchPlanByCmd.put(cmd, cachedIsToCallPostLoadFetchPlan);
        }
        cachedIsToCallPostLoadFetchPlan.put(loadedFields, itcplfp);
    }

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     */
    public SoftLevel2Cache(OMFContext omfCtx)
    {
        apiAdapter = omfCtx.getApiAdapter();
        pinnedCache = new HashMap();
        unpinnedCache = new SoftValueMap();
    }

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    private void readObject(ObjectInputStream in)
    throws IOException, ClassNotFoundException
    {
        // our "pseudo-constructor"
        in.defaultReadObject();
        unpinnedCache = new SoftValueMap();
    }

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Related Classes of org.datanucleus.util.SoftValueMap

org.datanucleus.cache.SoftLevel2Cache

org.datanucleus.FetchPlan

org.datanucleus.store.query.CandidateIdsQueryResult

org.datanucleus.store.rdbms.query.ScrollableQueryResult

org.datanucleus.util.SoftValueMapTest

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