Examples of org.datanucleus.FetchPlan

org.datanucleus.FetchPlan
FetchPlan for fields for use internally. A FetchPlan has a series of FetchPlanForClass objects being the fetch plan for particular classes. Each FetchPlanForClass defines a series of fields of that class that are part of the fetch plan. There are two types of fetch groups under consideration here.
- Static fetch groups, defined in MetaData (XML/Annotations).
- Dynamic fetch groups, defined via an API.

     */
    public void loadFieldValues(FieldValues fv)
    {
        // Fetch the required fields using any defined fetch plan
        FetchPlanForClass origFetchPlan = myFP;
        FetchPlan loadFetchPlan = fv.getFetchPlanForLoading();
        if (loadFetchPlan != null)
        {
            myFP = loadFetchPlan.manageFetchPlanForClass(cmd);
        }


        boolean callPostLoad = myFP.isToCallPostLoadFetchPlan(this.loadedFields);
        if (loadedFields.length == 0)
        {

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        }
      };
    } else {
      resultTransformer = new Function<Entity, Object>() {
        public Object apply(Entity from) {
          FetchPlan fp = query.getFetchPlan();
          return EntityUtils.entityToPojo(from, acmd, clr, getExecutionContext(), query.getIgnoreCache(), fp);
        }
      };
    }

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        opts.startCursor(cursor);
      }
    }


    // Use the fetch size of the fetch plan to determine chunk size.
    FetchPlan fetchPlan = query.getFetchPlan();
    Integer fetchSize = fetchPlan.getFetchSize();
    if (fetchSize != FetchPlan.FETCH_SIZE_OPTIMAL) {
      if (fetchSize == FetchPlan.FETCH_SIZE_GREEDY) {
        fetchSize = Integer.MAX_VALUE;
      }
    } else {

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        }
      };
    } else {
      resultTransformer = new Function<Entity, Object>() {
        public Object apply(Entity from) {
          FetchPlan fp = query.getFetchPlan();
          if (!projectionFields.isEmpty()) {
            // If this is a projection, ignore the fetch plan and just fetch everything.
            // We do this because we're returning individual fields, not an entire
            // entity.
            fp = null;

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        }
      };
    } else {
      resultTransformer = new Function<Entity, Object>() {
        public Object apply(Entity from) {
          FetchPlan fp = query.getFetchPlan();
          if (!projectionFields.isEmpty()) {
            // If this is a projection, ignore the fetch plan and just fetch everything.
            // We do this because we're returning individual fields, not an entire
            // entity.
            fp = null;

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     * @param helper  the expression builder with the in progress query
     * @param ammd  the member metadata for the relationship being appended
     * @param col  the column data for the relationship field
     */
    public void appendRelationshipQuery(ExpressionBuilderHelper helper, AbstractMemberMetaData ammd, ColumnImpl col)  {
        FetchPlan fetchPlan = ec.getFetchPlan();
        Set<Integer> joinFieldsToLoad = getFieldsToLoad(helper.acmd, fetchPlan);
        String relName = col.getForceApiRelationshipName();
        helper.getBuilder().append("(")
                           .append(buildQuery(helper.table, helper.acmd, joinFieldsToLoad, null, false,
                                               0, fetchPlan, helper.fetchDepth, relName, false, false, null, null

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     */
    public void loadFieldValues(FieldValues fv)
    {
        // Fetch the required fields using any defined fetch plan
        FetchPlan.FetchPlanForClass origFetchPlan = myFP;
        FetchPlan loadFetchPlan = fv.getFetchPlanForLoading();
        if (loadFetchPlan != null)
        {
            myFP = loadFetchPlan.manageFetchPlanForClass(cmd);
        }


        boolean callPostLoad = myFP.isToCallPostLoadFetchPlan(this.loadedFields);
        if (loadedFields.length == 0)
        {

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        }
      };
    } else {
      resultTransformer = new Function<Entity, Object>() {
        public Object apply(Entity from) {
          FetchPlan fp = query.getFetchPlan();
          if (!projectionFields.isEmpty()) {
            // If this is a projection, ignore the fetch plan and just fetch everything.
            // We do this because we're returning individual fields, not an entire
            // entity.
            fp = null;

View Full Code Here

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