Example usage for com.amazonaws.services.dynamodbv2 AmazonDynamoDB updateItem

Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2 AmazonDynamoDB updateItem.

Prototype

UpdateItemResult updateItem(UpdateItemRequest updateItemRequest);

Source Link

Document

Edits an existing item's attributes, or adds a new item to the table if it does not already exist.

Usage

From source file:com.netflix.config.sources.DynamoDbIntegrationTestHelper.java

License:Apache License

static void updateValues(AmazonDynamoDB dbClient, String tableName) {

    Map<String, AttributeValue> key1 = new HashMap<String, AttributeValue>(1);
    key1.put("test1", new AttributeValue().withS("HASH"));

    Map<String, AttributeValueUpdate> item1 = new HashMap<String, AttributeValueUpdate>(1);
    item1.put(DynamoDbConfigurationSource.defaultValueAttribute, new AttributeValueUpdate()
            .withAction(AttributeAction.PUT).withValue(new AttributeValue().withS("vala")));

    dbClient.updateItem(
            new UpdateItemRequest().withTableName(tableName).withKey(key1).withAttributeUpdates(item1));

    Map<String, AttributeValue> key2 = new HashMap<String, AttributeValue>(1);
    key2.put("test2", new AttributeValue().withS("HASH"));

    HashMap<String, AttributeValueUpdate> item2 = new HashMap<String, AttributeValueUpdate>(1);
    item2.put(DynamoDbConfigurationSource.defaultValueAttribute, new AttributeValueUpdate()
            .withAction(AttributeAction.PUT).withValue(new AttributeValue().withS("valb")));

    dbClient.updateItem(//from w ww . j av a  2s.  c o  m
            new UpdateItemRequest().withTableName(tableName).withKey(key2).withAttributeUpdates(item2));

    Map<String, AttributeValue> key3 = new HashMap<String, AttributeValue>(1);
    key3.put("test3", new AttributeValue().withS("HASH"));

    HashMap<String, AttributeValueUpdate> item3 = new HashMap<String, AttributeValueUpdate>(1);
    item3.put(DynamoDbConfigurationSource.defaultValueAttribute, new AttributeValueUpdate()
            .withAction(AttributeAction.PUT).withValue(new AttributeValue().withS("valc")));

    dbClient.updateItem(
            new UpdateItemRequest().withTableName(tableName).withKey(key3).withAttributeUpdates(item3));
}

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From source file:kinesisadaptersample.StreamsAdapterDemoHelper.java

License:Open Source License

public static void updateItem(AmazonDynamoDB dynamoDBClient, String tableName, String id, String val) {
    java.util.Map<String, AttributeValue> key = new HashMap<String, AttributeValue>();
    key.put("Id", new AttributeValue().withN(id));

    Map<String, AttributeValueUpdate> attributeUpdates = new HashMap<String, AttributeValueUpdate>();
    AttributeValueUpdate update = new AttributeValueUpdate().withAction(AttributeAction.PUT)
            .withValue(new AttributeValue().withS(val));
    attributeUpdates.put("attribute-2", update);

    UpdateItemRequest updateItemRequest = new UpdateItemRequest().withTableName(tableName).withKey(key)
            .withAttributeUpdates(attributeUpdates);
    dynamoDBClient.updateItem(updateItemRequest);
}

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