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

Introduction

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

Prototype

public Attribute(String name, String value) 

Source Link

Document

Constructs a new Attribute object.

Usage

From source file:SimpleDBExample.java

License:Open Source License

public static void main(String[] args) throws Exception {
    /*//from   w  ww.  ja  v  a 2 s.  c  o  m
     * This credentials provider implementation loads your AWS credentials
     * from a properties file at the root of your classpath.
     *
     * Important: Be sure to fill in your AWS access credentials in the
     *            AwsCredentials.properties file before you try to run this
     *            sample.
     * http://aws.amazon.com/security-credentials
     */
    AmazonSimpleDB sdb = new AmazonSimpleDBClient(new ClasspathPropertiesFileCredentialsProvider());
    Region usWest2 = Region.getRegion(Regions.US_WEST_2);
    sdb.setRegion(usWest2);

    System.out.println("===========================================");
    System.out.println("Getting Started with Amazon SimpleDB");
    System.out.println("===========================================\n");

    try {
        // Create a domain
        String myDomain = "MyStore";
        System.out.println("Creating domain called " + myDomain + ".\n");
        sdb.createDomain(new CreateDomainRequest(myDomain));

        // List domains
        System.out.println("Listing all domains in your account:\n");
        for (String domainName : sdb.listDomains().getDomainNames()) {
            System.out.println("  " + domainName);
        }
        System.out.println();

        // Put data into a domain
        System.out.println("Putting data into " + myDomain + " domain.\n");
        sdb.batchPutAttributes(new BatchPutAttributesRequest(myDomain, createSampleData()));

        // Select data from a domain
        // Notice the use of backticks around the domain name in our select expression.
        String selectExpression = "select * from `" + myDomain + "` where Category = 'Clothes'";
        System.out.println("Selecting: " + selectExpression + "\n");
        SelectRequest selectRequest = new SelectRequest(selectExpression);
        for (Item item : sdb.select(selectRequest).getItems()) {
            System.out.println("  Item");
            System.out.println("    Name: " + item.getName());
            for (Attribute attribute : item.getAttributes()) {
                System.out.println("      Attribute");
                System.out.println("        Name:  " + attribute.getName());
                System.out.println("        Value: " + attribute.getValue());
            }
        }
        System.out.println();

        // Delete values from an attribute
        System.out.println("Deleting Blue attributes in Item_O3.\n");
        Attribute deleteValueAttribute = new Attribute("Color", "Blue");
        sdb.deleteAttributes(
                new DeleteAttributesRequest(myDomain, "Item_03").withAttributes(deleteValueAttribute));

        // Delete an attribute and all of its values
        System.out.println("Deleting attribute Year in Item_O3.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03")
                .withAttributes(new Attribute().withName("Year")));

        // Replace an attribute
        System.out.println("Replacing Size of Item_03 with Medium.\n");
        List<ReplaceableAttribute> replaceableAttributes = new ArrayList<ReplaceableAttribute>();
        replaceableAttributes.add(new ReplaceableAttribute("Size", "Medium", true));
        sdb.putAttributes(new PutAttributesRequest(myDomain, "Item_03", replaceableAttributes));

        // Delete an item and all of its attributes
        System.out.println("Deleting Item_03.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03"));

        // Delete a domain
        System.out.println("Deleting " + myDomain + " domain.\n");
        sdb.deleteDomain(new DeleteDomainRequest(myDomain));
    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to Amazon SimpleDB, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with SimpleDB, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:SimpleDBSample.java

License:Open Source License

public static void main(String[] args) throws Exception {
    /*//  w w w.java 2s . co m
     * Important: Be sure to fill in your AWS access credentials in the
     *            AwsCredentials.properties file before you try to run this
     *            sample.
     * http://aws.amazon.com/security-credentials
     */
    AmazonSimpleDB sdb = new AmazonSimpleDBClient(
            new PropertiesCredentials(SimpleDBSample.class.getResourceAsStream("AwsCredentials.properties")));

    System.out.println("===========================================");
    System.out.println("Getting Started with Amazon SimpleDB");
    System.out.println("===========================================\n");

    try {
        // Create a domain
        String myDomain = "MyStore";
        System.out.println("Creating domain called " + myDomain + ".\n");
        sdb.createDomain(new CreateDomainRequest(myDomain));

        // List domains
        System.out.println("Listing all domains in your account:\n");
        for (String domainName : sdb.listDomains().getDomainNames()) {
            System.out.println("  " + domainName);
        }
        System.out.println();

        // Put data into a domain
        System.out.println("Putting data into " + myDomain + " domain.\n");
        sdb.batchPutAttributes(new BatchPutAttributesRequest(myDomain, createSampleData()));

        // Select data from a domain
        // Notice the use of backticks around the domain name in our select expression.
        String selectExpression = "select * from `" + myDomain + "` where Category = 'Clothes'";
        System.out.println("Selecting: " + selectExpression + "\n");
        SelectRequest selectRequest = new SelectRequest(selectExpression);
        for (Item item : sdb.select(selectRequest).getItems()) {
            System.out.println("  Item");
            System.out.println("    Name: " + item.getName());
            for (Attribute attribute : item.getAttributes()) {
                System.out.println("      Attribute");
                System.out.println("        Name:  " + attribute.getName());
                System.out.println("        Value: " + attribute.getValue());
            }
        }
        System.out.println();

        // Delete values from an attribute
        System.out.println("Deleting Blue attributes in Item_O3.\n");
        Attribute deleteValueAttribute = new Attribute("Color", "Blue");
        sdb.deleteAttributes(
                new DeleteAttributesRequest(myDomain, "Item_03").withAttributes(deleteValueAttribute));

        // Delete an attribute and all of its values
        System.out.println("Deleting attribute Year in Item_O3.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03")
                .withAttributes(new Attribute().withName("Year")));

        // Replace an attribute
        System.out.println("Replacing Size of Item_03 with Medium.\n");
        List<ReplaceableAttribute> replaceableAttributes = new ArrayList<ReplaceableAttribute>();
        replaceableAttributes.add(new ReplaceableAttribute("Size", "Medium", true));
        sdb.putAttributes(new PutAttributesRequest(myDomain, "Item_03", replaceableAttributes));

        // Delete an item and all of its attributes
        System.out.println("Deleting Item_03.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03"));

        // Delete a domain
        System.out.println("Deleting " + myDomain + " domain.\n");
        sdb.deleteDomain(new DeleteDomainRequest(myDomain));
    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to Amazon SimpleDB, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with SimpleDB, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:aws.sample.SimpleDBSample.java

License:Open Source License

public static void main(String[] args) throws Exception {
    /*/*from  w  w w. j a  v  a2s. c  om*/
     * Important: Be sure to fill in your AWS access credentials in the AwsCredentials.properties file before you try to run this sample. http://aws.amazon.com/security-credentials
     */
    AmazonSimpleDB sdb = new AmazonSimpleDBClient(
            new PropertiesCredentials(SimpleDBSample.class.getResourceAsStream("AwsCredentials.properties")));

    System.out.println("===========================================");
    System.out.println("Getting Started with Amazon SimpleDB");
    System.out.println("===========================================\n");

    try {
        // Create a domain
        String myDomain = "MyStore";
        System.out.println("Creating domain called " + myDomain + ".\n");
        sdb.createDomain(new CreateDomainRequest(myDomain));

        // List domains
        System.out.println("Listing all domains in your account:\n");
        for (String domainName : sdb.listDomains().getDomainNames()) {
            System.out.println("  " + domainName);
        }
        System.out.println();

        // Put data into a domain
        System.out.println("Putting data into " + myDomain + " domain.\n");
        sdb.batchPutAttributes(new BatchPutAttributesRequest(myDomain, createSampleData()));

        // Select data from a domain
        // Notice the use of backticks around the domain name in our select expression.
        String selectExpression = "select * from `" + myDomain + "` where Category = 'Clothes'";
        System.out.println("Selecting: " + selectExpression + "\n");
        SelectRequest selectRequest = new SelectRequest(selectExpression);
        for (Item item : sdb.select(selectRequest).getItems()) {
            System.out.println("  Item");
            System.out.println("    Name: " + item.getName());
            for (Attribute attribute : item.getAttributes()) {
                System.out.println("      Attribute");
                System.out.println("        Name:  " + attribute.getName());
                System.out.println("        Value: " + attribute.getValue());
            }
        }
        System.out.println();

        // Delete values from an attribute
        System.out.println("Deleting Blue attributes in Item_O3.\n");
        Attribute deleteValueAttribute = new Attribute("Color", "Blue");
        sdb.deleteAttributes(
                new DeleteAttributesRequest(myDomain, "Item_03").withAttributes(deleteValueAttribute));

        // Delete an attribute and all of its values
        System.out.println("Deleting attribute Year in Item_O3.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03")
                .withAttributes(new Attribute().withName("Year")));

        // Replace an attribute
        System.out.println("Replacing Size of Item_03 with Medium.\n");
        List<ReplaceableAttribute> replaceableAttributes = new ArrayList<ReplaceableAttribute>();
        replaceableAttributes.add(new ReplaceableAttribute("Size", "Medium", true));
        sdb.putAttributes(new PutAttributesRequest(myDomain, "Item_03", replaceableAttributes));

        // Delete an item and all of its attributes
        System.out.println("Deleting Item_03.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03"));

        // Delete a domain
        System.out.println("Deleting " + myDomain + " domain.\n");
        sdb.deleteDomain(new DeleteDomainRequest(myDomain));
    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to Amazon SimpleDB, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with SimpleDB, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:bench.auth.SimpleDBSample.java

License:Open Source License

public static void main(String[] args) throws Exception {

    /*/*from   w  w w.j a  v a2s  .  c  o  m*/
     * Important: Be sure to fill in your AWS access credentials in the
     * AwsCredentials.properties file before you try to run this sample.
     * http://aws.amazon.com/security-credentials
     */

    String home = System.getProperty("user.home");

    String props = home + "/.amazon/AwsCredentials.properties";
    System.out.println("props = " + props);

    URL url = new File(props).toURI().toURL();
    System.out.println("url = " + url);

    final AWSCredentials credentials = new PropertiesCredentials(url.openStream());

    final AmazonSimpleDB sdb = new AmazonSimpleDBClient(credentials);

    System.out.println("===========================================");
    System.out.println("Getting Started with Amazon SimpleDB");
    System.out.println("===========================================\n");

    try {

        // Create a domain
        String domain = "domain-tester";
        System.out.println("Creating domain called " + domain + ".\n");
        sdb.createDomain(new CreateDomainRequest(domain));

        // List domains
        System.out.println("Listing all domains in your account:\n");
        for (String domainName : sdb.listDomains().getDomainNames()) {
            System.out.println("  " + domainName);
        }
        System.out.println();

        // Put data into a domain
        System.out.println("Putting data into " + domain + " domain.\n");
        sdb.batchPutAttributes( //
                new BatchPutAttributesRequest(domain, createSampleData()));

        // Select data from a domain
        // Notice the use of backticks around the domain name in our select
        // expression.
        String selectExpression = //
                "select * from `" + domain + "` where Category = 'Clothes'";

        System.out.println("Selecting: " + selectExpression + "\n");

        SelectRequest selectRequest = new SelectRequest(selectExpression);

        for (Item item : sdb.select(selectRequest).getItems()) {
            System.out.println("  Item");
            System.out.println("    Name: " + item.getName());
            for (Attribute attribute : item.getAttributes()) {
                System.out.println("      Attribute");
                System.out.println("        Name:  " + attribute.getName());
                System.out.println("        Value: " + attribute.getValue());
            }
        }
        System.out.println();

        // Delete values from an attribute
        System.out.println("Deleting Blue attributes in Item_O3.\n");
        Attribute deleteValueAttribute = new Attribute("Color", "Blue");
        sdb.deleteAttributes(
                new DeleteAttributesRequest(domain, "Item_03").withAttributes(deleteValueAttribute));

        // Delete an attribute and all of its values
        System.out.println("Deleting attribute Year in Item_O3.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(domain, "Item_03")
                .withAttributes(new Attribute().withName("Year")));

        // Replace an attribute
        System.out.println("Replacing Size of Item_03 with Medium.\n");
        List<ReplaceableAttribute> replaceableAttributes = new ArrayList<ReplaceableAttribute>();
        replaceableAttributes.add(new ReplaceableAttribute("Size", "Medium", true));
        sdb.putAttributes(new PutAttributesRequest(domain, "Item_03", replaceableAttributes));

        // Delete an item and all of its attributes
        System.out.println("Deleting Item_03.\n");
        sdb.deleteAttributes(new DeleteAttributesRequest(domain, "Item_03"));

        // Delete a domain
        // System.out.println("Deleting " + myDomain + " domain.\n");
        // sdb.deleteDomain(new DeleteDomainRequest(myDomain));

    } catch (AmazonServiceException ase) {
        System.out.println("Caught an AmazonServiceException, which means your request made it "
                + "to Amazon SimpleDB, but was rejected with an error response for some reason.");
        System.out.println("Error Message:    " + ase.getMessage());
        System.out.println("HTTP Status Code: " + ase.getStatusCode());
        System.out.println("AWS Error Code:   " + ase.getErrorCode());
        System.out.println("Error Type:       " + ase.getErrorType());
        System.out.println("Request ID:       " + ase.getRequestId());
    } catch (AmazonClientException ace) {
        System.out.println("Caught an AmazonClientException, which means the client encountered "
                + "a serious internal problem while trying to communicate with SimpleDB, "
                + "such as not being able to access the network.");
        System.out.println("Error Message: " + ace.getMessage());
    }
}

---

From source file:c3.ops.priam.aws.SDBInstanceData.java

License:Apache License

protected List<Attribute> createAttributesToDeRegister(PriamInstance instance) {
    List<Attribute> attrs = new ArrayList<Attribute>();
    attrs.add(new Attribute(Attributes.INSTANCE_ID, instance.getInstanceId()));
    attrs.add(new Attribute(Attributes.TOKEN, instance.getToken()));
    attrs.add(new Attribute(Attributes.APP_ID, instance.getApp()));
    attrs.add(new Attribute(Attributes.ID, Integer.toString(instance.getId())));
    attrs.add(new Attribute(Attributes.AVAILABILITY_ZONE, instance.getRac()));
    attrs.add(new Attribute(Attributes.ELASTIC_IP, instance.getHostIP()));
    attrs.add(new Attribute(Attributes.HOSTNAME, instance.getHostName()));
    attrs.add(new Attribute(Attributes.LOCATION, instance.getDC()));
    attrs.add(new Attribute(Attributes.UPDATE_TS, Long.toString(instance.getUpdatetime())));
    return attrs;
}

---

From source file:com.brighttag.agathon.dao.sdb.SdbCassandraInstanceDao.java

License:Apache License

private static Attribute attribute(String key, String value) {
    return new Attribute(key, value);
}

---

From source file:com.dateofrock.simpledbmapper.SimpleDBMapper.java

License:Apache License

/**
 * SimpleDB?????/*  w w w  .  j av a2 s  .c  o m*/
 * 
 * @param object
 *            {@link SimpleDBDomain}????POJO
 *            {@link SimpleDBVersionAttribute}
 *            ??????????????<a href=
 *            "http://docs.amazonwebservices.com/AmazonSimpleDB/latest/DeveloperGuide/ConditionalPut.html"
 *            >Conditional Put</a>????
 */
public <T> void save(T object) {
    Class<?> clazz = object.getClass();
    String domainName = getDomainName(clazz);

    Field itemNameField = this.reflector.findItemNameField(clazz);
    if (itemNameField == null) {
        throw new SimpleDBMapperException(object + "@SimpleDBItemName????");
    }

    String itemName = null;
    itemName = this.reflector.encodeItemNameAsSimpleDBFormat(object, itemNameField);

    Set<Field> allFields = this.reflector.listAllFields(clazz);
    Map<String, Object> attributeMap = new HashMap<String, Object>();
    List<S3BlobReference> blobList = new ArrayList<S3BlobReference>();
    for (Field field : allFields) {
        try {
            String attributeName = this.reflector.getAttributeName(field);
            if (attributeName != null) {
                if (this.reflector.isAttributeField(field)) {
                    attributeMap.put(attributeName, field.get(object));
                } else if (this.reflector.isBlobField(field)) {
                    String s3BucketName = this.reflector.getS3BucketName(clazz);
                    String s3KeyPrefix = this.reflector.getS3KeyPrefix(clazz);
                    String s3ContentType = this.reflector.getS3ContentType(field);
                    // FIXME
                    S3BlobReference s3BlobRef = new S3BlobReference(attributeName, s3BucketName, s3KeyPrefix,
                            s3ContentType, field.get(object));
                    blobList.add(s3BlobRef);
                }
            }
        } catch (Exception e) {
            throw new SimpleDBMapperException(e);
        }
    }

    List<String> nullKeys = new ArrayList<String>();
    List<ReplaceableAttribute> replacableAttrs = new ArrayList<ReplaceableAttribute>();

    // SimpleDBAttribute
    for (Map.Entry<String, Object> entry : attributeMap.entrySet()) {
        String sdbAttributeName = entry.getKey();
        Object sdbValue = entry.getValue();
        if (sdbValue == null) {
            nullKeys.add(sdbAttributeName);// ?
        } else if (sdbValue instanceof Set) { // Set
            Set<?> c = (Set<?>) sdbValue;
            for (Object val : c) {
                replacableAttrs.add(new ReplaceableAttribute(sdbAttributeName,
                        this.reflector.encodeObjectAsSimpleDBFormat(val), true));
            }
        } else {
            replacableAttrs.add(new ReplaceableAttribute(sdbAttributeName,
                    this.reflector.encodeObjectAsSimpleDBFormat(sdbValue), true));
        }
    }

    // SimpleDBBlob
    // Upload?Blob?
    List<S3Task> uploadTasks = new ArrayList<S3Task>();
    for (S3BlobReference s3BlobRef : blobList) {
        String bucketName = s3BlobRef.getS3BucketName();
        if (bucketName == null) {
            throw new SimpleDBMapperException("Blob??s3BucketName????");
        }

        StringBuilder s3Key = new StringBuilder();
        String prefix = s3BlobRef.getPrefix();
        if (prefix == null) {
            throw new SimpleDBMapperException("Blob?prefix?null??????");
        }
        prefix = prefix.trim();
        s3Key.append(prefix);
        if (!prefix.isEmpty() && !prefix.endsWith("/")) {
            s3Key.append("/");
        }
        s3Key.append(itemName).append("/").append(s3BlobRef.getAttributeName());

        Object blobObject = s3BlobRef.getObject();
        if (blobObject == null) {
            nullKeys.add(s3BlobRef.getAttributeName());
            // ???Delete Object?
            // FIXME ????????SDB???DeleteAttribute?
            this.s3.deleteObject(bucketName, s3Key.toString());
        } else {
            // ?Blob????S3??????????????????????
            InputStream input = null;
            if (blobObject instanceof String) {
                // Blob?String
                // FIXME encoding???
                input = new ByteArrayInputStream(((String) blobObject).getBytes(Charset.forName("UTF-8")));
            } else if (blobObject.getClass().getSimpleName().equals("byte[]")) {
                // Blob?Byte?
                input = new ByteArrayInputStream((byte[]) blobObject);
            } else {
                throw new SimpleDBMapperException(
                        "Blob?????String????byte[]????");
            }
            S3Task uploadTask = new S3Task(this.s3, s3BlobRef.getAttributeName(), input, bucketName,
                    s3Key.toString(), s3BlobRef.getContentType());
            uploadTasks.add(uploadTask);
        }
    }

    // PutAttribute
    PutAttributesRequest req = new PutAttributesRequest();
    req.setDomainName(domainName);
    req.setItemName(itemName);

    // Version??object???Conditional PUT?
    Long nowVersion = System.currentTimeMillis();
    Field versionField = this.reflector.findVersionAttributeField(clazz);
    if (versionField != null) {
        try {
            Object versionObject = versionField.get(object);
            String versionAttributeName = versionField.getAnnotation(SimpleDBVersionAttribute.class)
                    .attributeName();
            if (versionObject != null) {
                if (versionObject instanceof Long) {
                    Long currentVersion = (Long) versionObject;
                    UpdateCondition expected = new UpdateCondition();
                    expected.setName(versionAttributeName);
                    expected.setValue(currentVersion.toString());
                    req.setExpected(expected);
                } else {
                    throw new SimpleDBMapperException(
                            "version?Long???????" + versionField);
                }
            }

            replacableAttrs.add(new ReplaceableAttribute(versionAttributeName, nowVersion.toString(), true));
        } catch (Exception e) {
            throw new SimpleDBMapperException("object?version??: " + object, e);
        }
    }

    // S3??
    List<S3TaskResult> taskFailures = new ArrayList<S3TaskResult>();
    ExecutorService executor = Executors.newFixedThreadPool(this.config.geS3AccessThreadPoolSize());
    try {
        List<Future<S3TaskResult>> futures = executor.invokeAll(uploadTasks);
        for (Future<S3TaskResult> future : futures) {
            S3TaskResult result = future.get();
            // SimpleDB?????
            replacableAttrs.add(new ReplaceableAttribute(result.getSimpleDBAttributeName(),
                    result.toSimpleDBAttributeValue(), true));
            if (!result.isSuccess()) {
                // Upload
                taskFailures.add(result);
            }
        }
    } catch (Exception e) {
        throw new SimpleDBMapperS3HandleException("S3??", e);
    }

    // UploadTask???
    if (!taskFailures.isEmpty()) {
        throw new SimpleDBMapperS3HandleException(taskFailures);
    }

    // SDB?PUT
    req.setAttributes(replacableAttrs);
    this.sdb.putAttributes(req);

    // version
    if (versionField != null) {
        try {
            versionField.set(object, nowVersion);
        } catch (Exception ignore) {
            throw new SimpleDBMapperException("version??", ignore);
        }
    }

    // DeleteAttribute
    if (!nullKeys.isEmpty()) {
        DeleteAttributesRequest delReq = new DeleteAttributesRequest();
        delReq.setDomainName(domainName);
        delReq.setItemName(itemName);
        Collection<Attribute> delAttrs = new ArrayList<Attribute>(nullKeys.size());
        for (String nullKey : nullKeys) {
            delAttrs.add(new Attribute(nullKey, null));
        }
        delReq.setAttributes(delAttrs);
        this.sdb.deleteAttributes(delReq);
    }

}

---

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

License:Apache License

@Override
public GetAttributesResult getAttributes(GetAttributesRequest getAttributesRequest)
        throws AmazonServiceException, AmazonClientException {
    this.getAttributesRequest = getAttributesRequest;

    return new GetAttributesResult().withAttributes(new Attribute("AttributeOne", "Value One"))
            .withAttributes(new Attribute("AttributeTwo", "Value Two"));
}

---

From source file:org.grails.datastore.mapping.simpledb.engine.SimpleDBEntityPersister.java

License:Apache License

@Override
public void updateEntry(final PersistentEntity persistentEntity, final EntityAccess ea, final Object key,
        final SimpleDBNativeItem entry) {

    String id = key.toString();//ww  w .  j  av  a2 s .  c  o  m
    String domain = domainResolver.resolveDomain(id);

    //for non-null values we should call putAttributes, for nulls we should call delete attributes
    List<ReplaceableAttribute> allAttributes = entry.createReplaceableItem().getAttributes();

    List<ReplaceableAttribute> puts = new LinkedList<ReplaceableAttribute>();
    List<Attribute> deletes = new LinkedList<Attribute>();

    //we have to put *new* (incremented) version as part of the 'version' value and use the old version value in the conditional update.
    //if the update fails we have to restore the version to the old value
    Object currentVersion = null;
    String stringCurrentVersion = null;
    if (isVersioned(ea)) {
        currentVersion = ea.getProperty("version");
        stringCurrentVersion = convertVersionToString(currentVersion);
        incrementVersion(ea); //increment version now before we save it
    }

    for (ReplaceableAttribute attribute : allAttributes) {
        if ("version".equals(attribute.getName())) {
            //ignore it, it will be explicitly added later right before the insert by taking incrementing and taking new one
        } else {
            if (attribute.getValue() != null) {
                puts.add(attribute);
            } else {
                deletes.add(new Attribute(attribute.getName(), null));
            }
        }
    }

    if (isVersioned(ea)) {
        puts.add(createAttributeForVersion(ea)); //update the version
        try {
            simpleDBTemplate.deleteAttributesVersioned(domain, id, deletes, stringCurrentVersion,
                    persistentEntity);
            simpleDBTemplate.putAttributesVersioned(domain, id, puts, stringCurrentVersion, persistentEntity);
        } catch (DataAccessException e) {
            //we need to restore version to what it was before the attempt to update
            ea.setProperty("version", currentVersion);
            throw e;
        }
    } else {
        simpleDBTemplate.deleteAttributes(domain, id, deletes);
        simpleDBTemplate.putAttributes(domain, id, puts);
    }
}

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