Example usage for com.amazonaws.services.simpledb.model SelectRequest SelectRequest

Introduction

In this page you can find the example usage for com.amazonaws.services.simpledb.model SelectRequest SelectRequest.

Prototype

public SelectRequest() 

Source Link

Document

Default constructor for SelectRequest object.

Usage

From source file:com.zotoh.cloudapi.aws.SDB.java

License:Open Source License

@SuppressWarnings("serial")
@Override//from w w w.  j a v a2 s.c om
public Map<String, Set<KeyValuePair>> query(String query, boolean consistentRead)
        throws CloudException, InternalException {
    tstEStrArg("query-string", query);
    Map<String, Set<KeyValuePair>> rc = MP();
    List<Item> lst;
    SelectRequest req;
    SelectResult res;
    String token = null;
    do {
        req = new SelectRequest().withSelectExpression(query).withConsistentRead(consistentRead);
        if (!isEmpty(token)) {
            req.setNextToken(token);
        }
        res = _svc.getCloud().getSDB().select(req);
        lst = res == null ? null : res.getItems();
        if (lst != null)
            for (int i = 0; i < lst.size(); ++i) {
                final Item itm = lst.get(i);
                rc.put(itm.getName(), new HashSet<KeyValuePair>() {
                    {
                        addAll(toKPs(itm.getAttributes()));
                    }
                });
            }
        token = res.getNextToken();
    } while (!isEmpty(token));
    return Collections.unmodifiableMap(rc);
}

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From source file:org.apache.camel.component.aws.sdb.SelectCommand.java

License:Apache License

public void execute() {
    SelectRequest request = new SelectRequest().withSelectExpression(determineSelectExpression())
            .withConsistentRead(determineConsistentRead()).withNextToken(determineNextToken());
    log.trace("Sending request [{}] for exchange [{}]...", request, exchange);

    SelectResult result = this.sdbClient.select(request);

    log.trace("Received result [{}]", result);

    Message msg = getMessageForResponse(exchange);
    msg.setHeader(SdbConstants.ITEMS, result.getItems());
    msg.setHeader(SdbConstants.NEXT_TOKEN, result.getNextToken());
}

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From source file:squash.booking.lambdas.core.OptimisticPersister.java

License:Apache License

@Override
public List<ImmutablePair<String, List<Attribute>>> getAllItems() {

    if (!initialised) {
        throw new IllegalStateException("The optimistic persister has not been initialised");
    }/*from   www. j a  v a 2s .co m*/

    // Query database to get items
    List<ImmutablePair<String, List<Attribute>>> items = new ArrayList<>();
    AmazonSimpleDB client = getSimpleDBClient();

    SelectRequest selectRequest = new SelectRequest();
    // N.B. Think if results are paged, second and subsequent pages will always
    // be eventually-consistent only. This is currently used only to back up the
    // database - so being eventually-consistent is good enough - after all -
    // even if we were fully consistent, someone could still add a new booking
    // right after our call anyway.
    selectRequest.setConsistentRead(true);
    // Query all items in the domain
    selectRequest.setSelectExpression("select * from `" + simpleDbDomainName + "`");
    String nextToken = null;
    do {
        SelectResult selectResult = client.select(selectRequest);
        selectResult.getItems().forEach(item -> {
            List<Attribute> attributes = new ArrayList<>();
            item.getAttributes().stream()
                    // Do not return the version attribute or inactive attributes
                    .filter(attribute -> (!attribute.getName().equals(versionAttributeName)
                            && !attribute.getValue().startsWith("Inactive")))
                    .forEach(attribute -> {
                        attributes.add(attribute);
                    });
            items.add(new ImmutablePair<>(item.getName(), attributes));
        });
        nextToken = selectResult.getNextToken();
        selectRequest.setNextToken(nextToken);
    } while (nextToken != null);

    return items;
}

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