Example usage for com.amazonaws.services.dynamodbv2.model DeleteRequest DeleteRequest

Introduction

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

Prototype

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

Source Link

Document

Constructs a new DeleteRequest object.

Usage

From source file:com.dell.doradus.db.s3.DynamoDBService2.java

License:Apache License

public void commit(DBTransaction dbTran) {
    Timer t = new Timer();
    List<WriteRequest> list = new ArrayList<>();

    for (ColumnUpdate mutation : dbTran.getColumnUpdates()) {
        Map<String, AttributeValue> item = getPrimaryKey(mutation.getStoreName() + "_" + mutation.getRowKey(),
                mutation.getColumn().getName());
        byte[] value = mutation.getColumn().getRawValue();
        if (value.length == 0)
            value = EMPTY_VALUE;/*  w w  w.  j  av a2  s. c  o m*/
        item.put("value", new AttributeValue().withB(ByteBuffer.wrap(value)));
        list.add(new WriteRequest().withPutRequest(new PutRequest(item)));

        if (list.size() >= 25) {
            commitPartial(list);
        }
    }

    for (ColumnDelete mutation : dbTran.getColumnDeletes()) {
        Map<String, AttributeValue> item = getPrimaryKey(mutation.getStoreName() + "_" + mutation.getRowKey(),
                mutation.getColumnName());
        list.add(new WriteRequest().withDeleteRequest(new DeleteRequest(item)));

        if (list.size() >= 25) {
            commitPartial(list);
        }

    }

    for (RowDelete mutation : dbTran.getRowDeletes()) {
        for (DColumn c : getColumnSlice(mutation.getStoreName(), mutation.getRowKey(), null, null)) {
            Map<String, AttributeValue> item = getPrimaryKey(
                    mutation.getStoreName() + "_" + mutation.getRowKey(), c.getName());
            list.add(new WriteRequest().withDeleteRequest(new DeleteRequest(item)));

            if (list.size() >= 25) {
                commitPartial(list);
            }

        }
    }

    if (list.size() > 0) {
        commitPartial(list);
    }

    m_logger.debug("Committed transaction to {} in {}", getTenant().getName(), t);
}

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