Example usage for org.apache.ibatis.executor.result DefaultResultContext DefaultResultContext

Introduction

In this page you can find the example usage for org.apache.ibatis.executor.result DefaultResultContext DefaultResultContext.

Prototype

public DefaultResultContext() 

Source Link

Usage

From source file:org.alfresco.ibatis.RollupResultHandler.java

License:Open Source License

public void handleResult(ResultContext context) {
    // Shortcut if we have processed enough results
    if (maxResults > 0 && resultCount >= maxResults) {
        return;/* w w  w  .j a  va 2s  .com*/
    }

    Object valueObject = context.getResultObject();
    MetaObject probe = configuration.newMetaObject(valueObject);

    // Check if the key has changed
    if (lastKeyValues == null) {
        lastKeyValues = getKeyValues(probe);
        resultCount = 0;
    }
    // Check if it has changed
    Object[] currentKeyValues = getKeyValues(probe);
    if (!Arrays.deepEquals(lastKeyValues, currentKeyValues)) {
        // Key has changed, so handle the results
        Object resultObject = coalesceResults(configuration, rawResults, collectionProperty);
        if (resultObject != null) {
            DefaultResultContext resultContext = new DefaultResultContext();
            resultContext.nextResultObject(resultObject);

            resultHandler.handleResult(resultContext);
            resultCount++;
        }
        rawResults.clear();
        lastKeyValues = currentKeyValues;
    }
    // Add the new value to the results for next time
    rawResults.add(valueObject);
    // Done
}

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From source file:org.alfresco.ibatis.RollupResultHandler.java

License:Open Source License

/**
 * Client code <b>must</b> call this method once the query returns so that the final results
 * can be passed to the inner RowHandler.  If a query is limited by size, then it is
 * possible that the unprocessed results represent an incomplete final object; in this case
 * it would be best to ignore the last results.  If the query is complete (i.e. all results
 * are returned) then this method should be called.
 * <p>/*from  w w  w.ja  v a2 s. c om*/
 * If you want X results and each result is made up of N rows (on average), then set the query
 * limit to: <br/>
 *   L = X * (N+1)<br/>
 * and don't call this method.
 */
public void processLastResults() {
    // Shortcut if we have processed enough results
    if (maxResults > 0 && resultCount >= maxResults) {
        return;
    }
    // Handle any outstanding results
    Object resultObject = coalesceResults(configuration, rawResults, collectionProperty);
    if (resultObject != null) {
        DefaultResultContext resultContext = new DefaultResultContext();
        resultContext.nextResultObject(resultObject);

        resultHandler.handleResult(resultContext);
        resultCount++;
        rawResults.clear(); // Stop it from being used again
    }
}

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From source file:org.alfresco.repo.domain.node.ibatis.NodeDAOImpl.java

License:Open Source License

@Override
public void selectChildAssocs(Long parentNodeId, QName assocTypeQName, QName assocQName, final int maxResults,
        ChildAssocRefQueryCallback resultsCallback) {
    ChildAssocEntity assoc = new ChildAssocEntity();
    // Parent/* w  w w .  ja  va  2  s  .c o  m*/
    NodeEntity parentNode = new NodeEntity();
    parentNode.setId(parentNodeId);
    assoc.setParentNode(parentNode);

    // Type QName
    if (assocTypeQName != null) {
        if (!assoc.setTypeQNameAll(qnameDAO, assocTypeQName, false)) {
            resultsCallback.done();
            return; // Shortcut
        }
    }
    // QName
    if (assocQName != null) {
        if (!assoc.setQNameAll(qnameDAO, assocQName, false)) {
            resultsCallback.done();
            return; // Shortcut
        }
    }
    // Order
    assoc.setOrdered(resultsCallback.orderResults());

    ChildAssocResultHandler resultHandler = new ChildAssocResultHandler(resultsCallback);

    RowBounds rowBounds = new RowBounds(0, maxResults);
    List<?> entities = template.selectList(SELECT_CHILD_ASSOCS_OF_PARENT_LIMITED, assoc, rowBounds);
    final DefaultResultContext resultContext = new DefaultResultContext();
    for (Object entity : entities) {
        resultContext.nextResultObject(entity);
        resultHandler.handleResult(resultContext);
    }

    resultsCallback.done();
}

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