Package com.amazonaws.services.simpledb.model

Examples of com.amazonaws.services.simpledb.model.SelectResult

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    public void renameSubclass(String oldClassName, Class newClass) {
        logger.info("Renaming DTYPE for " + oldClassName + " to " + newClass.getSimpleName());
        try {
            String newClassName = newClass.getSimpleName();
            String domainName = factory.getDomainName(newClass);
            SelectResult result;
            List<Item> items;
            int i = 0;
            String nextToken = null;
            while (i == 0 || nextToken != null) {
                result = executeQueryForRenameSubclass(oldClassName, newClass, domainName, nextToken);
                items = result.getItems();
                putNewValue(domainName, items, EntityManagerFactoryImpl.DTYPE, newClassName);
                nextToken = result.getNextToken();
                i++;
                if (i % 100 == 0) {
                    System.out.println("Renamed " + i + " subclassed objects so far...");
                }
            }
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            db.putAttributes(new PutAttributesRequest(domainName, item.getName(), atts));
        }
    }

    private SelectResult executeQueryForRenameSubclass(String oldClassName, Class newClass, String domainName, String nextToken) throws AmazonClientException {
        SelectResult result = DomainHelper.selectItems(factory.getSimpleDb(), domainName, "'DTYPE' = '" + oldClassName + "'", nextToken, consistentRead);
        return result;
    }
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        return result;
    }

    private SelectResult executeQueryForRename(String oldAttributeName, String newAttributeName, String domainName, String nextToken)
            throws AmazonClientException {
        SelectResult result = DomainHelper.selectItems(factory.getSimpleDb(), domainName, "['" + oldAttributeName + "' starts-with ''] intersection not ['"
                + newAttributeName + "' starts-with ''] ", nextToken, consistentRead);
        return result;
    }
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        if (backingList == null) {
            backingList = new GrowthList();
        }

        while (backingList.size() <= index) {
            SelectResult qr;
            try {
                if (logger.isLoggable(Level.FINER))
                    logger.finer("query for lazylist=" + origQuery);

                int limit = maxResults - backingList.size();
                String limitQuery = realQuery + " limit " + (noLimit() ? maxResultsPerToken : Math.min(maxResultsPerToken, limit));
                if (em.getFactory().isPrintQueries())
                    System.out.println("query in lazylist=" + limitQuery);
                qr = DomainHelper.selectItems(this.em.getSimpleDb(), limitQuery, nextToken, isConsistentRead());

                if (logger.isLoggable(Level.FINER))
                    logger.finer("got items for lazylist=" + qr.getItems().size());

                for (Item item : qr.getItems()) {
                    backingList.add((E) em.buildObject(genericReturnType, item.getName(), item.getAttributes()));
                }

                if (qr.getNextToken() == null || (!noLimit() && qr.getItems().size() == limit)) {
                    nextToken = null;
                    break;
                }

                if (!noLimit() && qr.getItems().size() > limit) {
                    throw new PersistenceException("Got more results than the limit.");
                }

                nextToken = qr.getNextToken();
            } catch (AmazonClientException e) {
                throw new PersistenceException("Query failed: Domain=" + domainName + " -> " + origQuery, e);
            }
        }
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public class ConcurrentRetriever {
    private static boolean parallel = true;

    public static List<ItemAndAttributes> test(EntityManagerSimpleJPA em, String domainName) throws AmazonClientException, ExecutionException, InterruptedException {
      AmazonSimpleDB db = em.getSimpleDb();
      SelectResult result = DomainHelper.selectItems(db, "select * from `" + domainName + "`", null);

      List<SdbItem> list = new ArrayList<SdbItem>();
        for (Item item : result.getItems()) {
            list.add(new SdbItemImpl2(item));
        }
        return getAttributesFromSdb(list, em.getExecutor(), em);
    }
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// String qToSend = amazonQuery != null ? amazonQuery.toString() : null;
            em.incrementQueryCount();
            if (amazonQuery.isCount()) {
// String domainName = em.getDomainName(tClass);
                String nextToken = null;
                SelectResult qr;
                long count = 0;

                while ((qr = DomainHelper.selectItems(this.em.getSimpleDb(), amazonQuery.getValue(), nextToken)) != null) {
                    Map<String, List<Attribute>> itemMap = new HashMap<String, List<Attribute>>();
                    for (Item item : qr.getItems()) {
                        itemMap.put(item.getName(), item.getAttributes());
                    }

                    for (String id : itemMap.keySet()) {
                        List<Attribute> list = itemMap.get(id);
                        for (Attribute itemAttribute : list) {
                            if (itemAttribute.getName().equals("Count")) {
                                count += Long.parseLong(itemAttribute.getValue());
                            }
                        }
                    }
                    nextToken = qr.getNextToken();
                    if (nextToken == null) {
                        break;
                    }
                }
                return Arrays.asList(count);
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        this.service = service;
    }

    public boolean execute(DumpDomainContext context) throws Exception {
        SelectRequest selectRequest = new SelectRequest(String.format("SELECT * FROM %s", context.getDomain()));
        SelectResult selectResult = service.select(selectRequest);

        ArrayNode rootNode = mapper.createArrayNode();

        while (!selectResult.getItems().isEmpty()) {
            for (Item item : selectResult.getItems())
                appendResult(rootNode, item);
                   
            if (isBlank(selectResult.getNextToken()))
                break;

            selectResult = service.select(selectRequest.withNextToken(selectResult.getNextToken()));
        }
       
        FileWriter writer = new FileWriter(context.getOutputFile());
       
        writeData(rootNode, writer);
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