com.amazonaws.services.dynamodb.model.BatchGetItemRequest Maven / Gradle / Ivy
/*
* Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws.services.dynamodb.model;
import com.amazonaws.AmazonWebServiceRequest;
import java.io.Serializable;
/**
* Container for the parameters to the {@link com.amazonaws.services.dynamodb.AmazonDynamoDB#batchGetItem(BatchGetItemRequest) BatchGetItem operation}.
*
* Retrieves the attributes for multiple items from multiple tables using their primary keys.
*
*
* The maximum number of item attributes that can be retrieved for a single operation is 100. Also, the number of items retrieved is constrained by a 1
* MB the size limit. If the response size limit is exceeded or a partial result is returned due to an internal processing failure, Amazon DynamoDB
* returns an UnprocessedKeys value so you can retry the operation starting with the next item to get.
*
*
* Amazon DynamoDB automatically adjusts the number of items returned per page to enforce this limit. For example, even if you ask to retrieve 100 items,
* but each individual item is 50k in size, the system returns 20 items and an appropriate UnprocessedKeys value so you can get the next
* page of results. If necessary, your application needs its own logic to assemble the pages of results into one set.
*
*
* @see com.amazonaws.services.dynamodb.AmazonDynamoDB#batchGetItem(BatchGetItemRequest)
*
* @deprecated Use {@link com.amazonaws.services.dynamodbv2.model.BatchGetItemRequest} instead.
*/
@Deprecated
public class BatchGetItemRequest extends AmazonWebServiceRequest implements Serializable {
/**
* A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*
* Constraints:
* Length: 1 - 100
*/
private java.util.Map requestItems;
/**
* A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*
* Constraints:
* Length: 1 - 100
*
* @return A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*/
public java.util.Map getRequestItems() {
return requestItems;
}
/**
* A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*
* Constraints:
* Length: 1 - 100
*
* @param requestItems A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*/
public void setRequestItems(java.util.Map requestItems) {
this.requestItems = requestItems;
}
/**
* A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*
* Returns a reference to this object so that method calls can be chained together.
*
* Constraints:
* Length: 1 - 100
*
* @param requestItems A map of the table name and corresponding items to get by primary key.
* While requesting items, each table name can be invoked only once per
* operation.
*
* @return A reference to this updated object so that method calls can be chained
* together.
*/
public BatchGetItemRequest withRequestItems(java.util.Map requestItems) {
setRequestItems(requestItems);
return this;
}
/**
* Returns a string representation of this object; useful for testing and
* debugging.
*
* @return A string representation of this object.
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{");
if (getRequestItems() != null) sb.append("RequestItems: " + getRequestItems() + ", ");
sb.append("}");
return sb.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int hashCode = 1;
hashCode = prime * hashCode + ((getRequestItems() == null) ? 0 : getRequestItems().hashCode());
return hashCode;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof BatchGetItemRequest == false) return false;
BatchGetItemRequest other = (BatchGetItemRequest)obj;
if (other.getRequestItems() == null ^ this.getRequestItems() == null) return false;
if (other.getRequestItems() != null && other.getRequestItems().equals(this.getRequestItems()) == false) return false;
return true;
}
}