Examples of com.amazonaws.services.dynamodbv2.model.UpdateItemRequest

Package com.amazonaws.services.dynamodbv2.model

Examples of com.amazonaws.services.dynamodbv2.model.UpdateItemRequest

com.amazonaws.services.dynamodbv2.model.UpdateItemRequest
Container for the parameters to the {@link com.amazonaws.services.dynamodbv2.AmazonDynamoDB#updateItem(UpdateItemRequest) UpdateItem operation}.
Edits an existing item's attributes, or inserts a new item if it does not already exist. You can put, delete, or add attribute values. You can also perform a conditional update (insert a new attribute name-value pair if it doesn't exist, or replace an existing name-value pair if it has certain expected attribute values).

In addition to updating an item, you can also return the item's attribute values in the same operation, using the ReturnValues parameter.
@see com.amazonaws.services.dynamodbv2.AmazonDynamoDB#updateItem(UpdateItemRequest)

                            }
                        }
                    }
                    if ( doUpdateItem ) {
                        /* Send an updateItem request. */
                        db.updateItem(applyUserAgent(new UpdateItemRequest()
                                .withTableName(getTableName())
                                .withKey(getKeyAttributeValues())
                                .withAttributeUpdates(
                                        transformAttributeUpdates(this.clazz,
                                                getKeyAttributeValues(), getAttributeValueUpdates()))

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import java.util.Map;


public class UpdateItemRequestJsonUnmarshaller implements Unmarshaller<UpdateItemRequest, JsonUnmarshallerContext> {


    public UpdateItemRequest unmarshall(JsonUnmarshallerContext context) throws Exception {
        UpdateItemRequest request = new UpdateItemRequest();


        int originalDepth = context.getCurrentDepth();
        int targetDepth = originalDepth + 1;


        JsonToken token = context.currentToken;
        if (token == null) token = context.nextToken();
        while (true) {
            if (token == null) break;


            if (token == JsonToken.FIELD_NAME || token == JsonToken.START_OBJECT) {
                if (context.testExpression("TableName", targetDepth)) {
                    context.nextToken();
                    request.setTableName(SimpleTypeJsonUnmarshallers.StringJsonUnmarshaller.getInstance().unmarshall(context));
                }
                if (context.testExpression("Key", targetDepth)) {
                    request.setKey(new MapUnmarshaller<String, AttributeValue>(SimpleTypeJsonUnmarshallers.StringJsonUnmarshaller.getInstance(), AttributeValueJsonUnmarshaller.getInstance()).unmarshall(context));
                }
                if (context.testExpression("Expected", targetDepth)) {
                  Map<String, ExpectedAttributeValue> expected = new MapUnmarshaller<String, ExpectedAttributeValue>(SimpleTypeJsonUnmarshallers.StringJsonUnmarshaller.getInstance(), ExpectedAttributeValueJsonUnmarshaller.getInstance()).unmarshall(context);
                    request.setExpected(expected);
                }if (context.testExpression("AttributeUpdates", targetDepth)) {
                    request.setAttributeUpdates(new MapUnmarshaller<String, AttributeValueUpdate>(SimpleTypeJsonUnmarshallers.StringJsonUnmarshaller.getInstance(), AttributeValueUpdateJsonUnmarshaller.getInstance()).unmarshall(context));
                }
            } else if (token == JsonToken.END_ARRAY || token == JsonToken.END_OBJECT) {
                if (context.getCurrentDepth() <= originalDepth) break;
            }
            token = context.nextToken();

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        Map<String, AttributeValueUpdate> attrToUp = new HashMap<String, AttributeValueUpdate>();
        AttributeValueUpdate update = new AttributeValueUpdate();
        update.setAction("PUT");
        update.setValue(hash);
        attrToUp.put("updated", update);
        UpdateItemRequest request = new UpdateItemRequest(tableName, createItemKey("id", hash), attrToUp);
        UpdateItemResult res = getClient().updateItem(request);
        Assert.assertNotNull(res);
        Assert.assertNotNull(res.getAttributes());
    }

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        Map<String, AttributeValueUpdate> attrToUp = new HashMap<String, AttributeValueUpdate>();
        AttributeValueUpdate update = new AttributeValueUpdate();
        update.setAction("PUT");
        update.setValue(hash);
        attrToUp.put("updated", update);
        UpdateItemRequest request = new UpdateItemRequest();
        request.setKey(createItemKey("id", hash));
        request.setAttributeUpdates(attrToUp);
    try {
      getClient().updateItem(request);
      Assert.assertTrue(false);// Should have thrown an exception
    } catch (AmazonServiceException ase) {
    }

View Full Code Here

        Map<String, AttributeValueUpdate> attrToUp = new HashMap<String, AttributeValueUpdate>();
        AttributeValueUpdate update = new AttributeValueUpdate();
        update.setAction("PUT");
        update.setValue(hash);
        attrToUp.put("updated", update);
        UpdateItemRequest request = new UpdateItemRequest();
        request.setTableName(tableName);
        request.setAttributeUpdates(attrToUp);
    try {
      getClient().updateItem(request);
      Assert.assertTrue(false);// Should have thrown an exception
    } catch (AmazonServiceException ase) {
    }

View Full Code Here


        Map<String, AttributeValueUpdate> dynValues = new HashMap<String, AttributeValueUpdate> ();
        dynValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.ADD));


        AttributeValue hashKey = new AttributeValue().withS("1");
        UpdateItemRequest update = new UpdateItemRequest(tableName, createItemKey("id", hashKey), dynValues);


        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        AttributeValue hashKey = new AttributeValue().withS("1");


        Map<String, AttributeValueUpdate> dynValues = new HashMap<String, AttributeValueUpdate> ();
        dynValues.put("count", new AttributeValueUpdate(new AttributeValue().withNS("100"), AttributeAction.ADD));


        UpdateItemRequest update = new UpdateItemRequest(tableName, createItemKey("id", hashKey), dynValues);


        getClient().updateItem(update);


        //second update
        dynValues = new HashMap<String, AttributeValueUpdate> ();
        dynValues.put("count", new AttributeValueUpdate(new AttributeValue().withNS("102"), AttributeAction.ADD));
        update = new UpdateItemRequest(tableName, createItemKey("id", hashKey), dynValues);
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        AttributeValue hashKey = new AttributeValue().withS("1");


        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));


        UpdateItemRequest update = new UpdateItemRequest(tableName, createItemKey("id", hashKey), oldValues);


        getClient().updateItem(update);


        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));


        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));


        update = new UpdateItemRequest().withTableName(tableName).withKey(createItemKey("id", hashKey)).withAttributeUpdates(newValues).withExpected(expectedValues);
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        AttributeValue hashKey = new AttributeValue().withS("1");


        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));


        UpdateItemRequest update = new UpdateItemRequest(tableName, createItemKey("id", hashKey), oldValues);


        getClient().updateItem(update);


        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        newValues.put("ids", new AttributeValueUpdate(new AttributeValue().withS("[er, er]"), AttributeAction.ADD));


        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));


        update = new UpdateItemRequest().withTableName(tableName).withKey(createItemKey("id", hashKey)).withAttributeUpdates(newValues).withExpected(expectedValues);
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

        AttributeValue hashKey = new AttributeValue().withS("1");


        Map<String, AttributeValueUpdate> oldValues = new HashMap<String, AttributeValueUpdate> ();
        oldValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("100"), AttributeAction.PUT));


        UpdateItemRequest update = new UpdateItemRequest(tableName, createItemKey("id", hashKey), oldValues);


        getClient().updateItem(update);


        //conditional update
        HashMap<String, AttributeValueUpdate> newValues = new HashMap<String, AttributeValueUpdate> ();
        newValues.put("count", new AttributeValueUpdate(new AttributeValue().withN("102"), AttributeAction.PUT));
        newValues.put("ids", new AttributeValueUpdate(new AttributeValue().withS("[er, er]"), AttributeAction.PUT));


        HashMap<String, ExpectedAttributeValue> expectedValues = new HashMap<String, ExpectedAttributeValue> ();
        expectedValues.put("count", new ExpectedAttributeValue().withValue(new AttributeValue().withN("100")));


        update = new UpdateItemRequest().withTableName(tableName).withKey(createItemKey("id", hashKey)).withAttributeUpdates(newValues).withExpected(expectedValues);
        getClient().updateItem(update);


        inProcessClient.save(PERSISTENCE_PATH);
        createNewInProcessClient().restore(PERSISTENCE_PATH);

View Full Code Here

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