Package org.apache.cayenne.query

Examples of org.apache.cayenne.query.Query

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            SelectQuery select = new SelectQuery(entity);
            select.setFetchingDataRows(true);

            // delegate is allowed to substitute query
            Query query = (delegate != null) ? delegate.willPortEntity(
                    this,
                    entity,
                    select) : select;

            sourceNode.performQueries(Collections.singletonList(query), observer);
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     * Returns a named query associated with this DataMap.
     *
     * @since 1.1
     */
    public Query getQuery(String queryName) {
        Query query = queryMap.get(queryName);
        if (query != null) {
            return query;
        }

        return namespace != null ? namespace.getQuery(queryName) : null;
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     * Returns stored EOQuery.
     *
     * @since 1.1
     */
    public EOQuery getEOQuery(String queryName) {
        Query query = getDataMap().getQuery(qualifiedQueryName(queryName));
        if (query instanceof EOQuery) {
            return (EOQuery) query;
        }

        return null;
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        Validate.notNull(objectContext, "Null dataObjectClass parameter");
        Validate.notNull(objectContext, "Null pk parameter");

        ObjectId objectId = createObjectId(objectContext, dataObjectClass, pk);

        Query query = new ObjectIdQuery(objectId, false, ObjectIdQuery.CACHE_REFRESH);

        List objects = objectContext.performQuery(query);

        if (objects.isEmpty()) {
            return null;
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            }

            // 3. refresh query - this shouldn't normally happen as child datacontext
            // usually does a cascading refresh
            if (refreshQuery.getQuery() != null) {
                Query cachedQuery = refreshQuery.getQuery();

                String cacheKey = cachedQuery
                        .getMetaData(context.getEntityResolver())
                        .getCacheKey();
                context.getQueryCache().remove(cacheKey);

                this.response = domain.onQuery(context, cachedQuery);
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        // Delete data from entities one by one
        Iterator it = entities.iterator();
        while (it.hasNext()) {
            DbEntity entity = (DbEntity) it.next();

            Query query = new SQLTemplate(entity, "DELETE FROM "
                    + entity.getFullyQualifiedName());

            // notify delegate that delete is about to happen
            if (delegate != null) {
                query = delegate.willCleanData(this, entity, query);
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            SelectQuery select = new SelectQuery(entity);
            select.setFetchingDataRows(true);

            // delegate is allowed to substitute query
            Query query = (delegate != null) ? delegate.willPortEntity(
                    this,
                    entity,
                    select) : select;

            sourceNode.performQueries(Collections.singletonList(query), observer);
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    public boolean isIteratedResult() {
        return callback.isIteratedResult();
    }

    Query queryForExecutedQuery(Query executedQuery) {
        Query q = null;

        if (queriesByExecutedQueries != null) {
            q = queriesByExecutedQueries.get(executedQuery);
        }
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        if (id.isTemporary()) {
            return null;
        }

        // skip context cache lookup, go directly to its channel
        Query query = new ObjectIdQuery((ObjectId) nodeId);
        QueryResponse response = context.getChannel().onQuery(context, query);
        List objects = response.firstList();

        if (objects.size() == 0) {
            throw new CayenneRuntimeException("No object for ID exists: " + nodeId);
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    /**
     * Returns a named query or null if no query exists for a given name.
     */
    public synchronized Query lookupQuery(String name) {
        Query result = queryCache.get(name);

        if (result == null) {
            // reconstruct cache just in case some of the datamaps
            // have changed and now contain the required information
            constructCache();
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Related Classes of org.apache.cayenne.query.Query

  • org.apache.cayenne.access.ChildDiffLoader
  • org.apache.cayenne.access.ClientServerChannelQueryAction
  • org.apache.cayenne.access.ClientServerChannelTest
  • org.apache.cayenne.access.DataContext
  • org.apache.cayenne.access.DataContextQueryAction
  • org.apache.cayenne.access.DataContextTest
  • org.apache.cayenne.access.DataDomainLegacyQueryAction
  • org.apache.cayenne.access.DataDomainQueryAction
  • org.apache.cayenne.access.DataNode
  • org.apache.cayenne.access.DataNodeQueriesTest
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