Example usage for com.amazonaws.services.dynamodbv2.model UpdateItemRequest getKey

Introduction

In this page you can find the example usage for com.amazonaws.services.dynamodbv2.model UpdateItemRequest getKey.

Prototype

public java.util.Map<String, AttributeValue> getKey() 

Source Link

Document

The primary key of the item to be updated.

Usage

From source file:amazon.dynamodb.config.DynamoDBManager.java

License:Open Source License

public UpdatePointResult updatePoint(UpdatePointRequest updatePointRequest) {
    long geohash = S2Manager.generateGeohash(updatePointRequest.getGeoPoint());
    long hashKey = S2Manager.generateHashKey(geohash, config.getHashKeyLength());

    UpdateItemRequest updateItemRequest = updatePointRequest.getUpdateItemRequest();
    updateItemRequest.setTableName(config.getTableName());

    AttributeValue hashKeyValue = new AttributeValue().withN(String.valueOf(hashKey));
    updateItemRequest.getKey().put(config.getHashKeyAttributeName(), hashKeyValue);
    updateItemRequest.getKey().put(config.getRangeKeyAttributeName(), updatePointRequest.getRangeKeyValue());

    // Geohash and geoJson cannot be updated.
    updateItemRequest.getAttributeUpdates().remove(config.getGeohashAttributeName());
    updateItemRequest.getAttributeUpdates().remove(config.getGeoJsonAttributeName());

    UpdateItemResult updateItemResult = config.getDynamoDBClient().updateItem(updateItemRequest);
    UpdatePointResult updatePointResult = new UpdatePointResult(updateItemResult);

    return updatePointResult;
}

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From source file:com.amazon.janusgraph.diskstorage.dynamodb.DynamoDbDelegate.java

License:Open Source License

/**
 * This method calculates a lower bound of the size of a new item created with UpdateItem UpdateExpression. It does not
 * account for the size of the attribute names of the document paths in the attribute names map and it assumes that the
 * UpdateExpression only uses the SET action to assign to top-level attributes.
 * @param request UpdateItem request that uses update expressions
 * @return the size of the post-update image of the item
 *///from   w w w.ja va2 s .  c o  m
private int calculateExpressionBasedUpdateSize(final UpdateItemRequest request) {
    if (request == null || request.getUpdateExpression() == null) {
        throw new IllegalArgumentException("request did not use update expression");
    }
    int size = calculateItemSizeInBytes(request.getKey());
    for (AttributeValue value : request.getExpressionAttributeValues().values()) {
        size += calculateAttributeSizeInBytes(value);
    }
    return size;
}

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From source file:com.rapid7.diskstorage.dynamodb.DynamoDBDelegate.java

License:Open Source License

/**
 * This method calculates a lower bound of the size of a new item created with UpdateItem UpdateExpression. It does not
 * account for the size of the attribute names of the document paths in the attribute names map and it assumes that the
 * UpdateExpression only uses the SET action to assign to top-level attributes.
 * @param request UpdateItem request that uses update expressions
 * @return the size of the post-update image of the item
 *//*from  w  w w. j a  va2 s.co  m*/
private int calculateExpressionBasedUpdateSize(UpdateItemRequest request) {
    if (request == null || request.getUpdateExpression() == null) {
        throw new IllegalArgumentException("request did not use update expression");
    }
    int size = calculateItemSizeInBytes(request.getKey());
    for (AttributeValue value : request.getExpressionAttributeValues().values()) {
        size += calculateAttributeSizeInBytes(value);
    }
    return size;
}

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