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/*
* Copyright 2016-2021 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.dynamodbv2.model;
import java.io.Serializable;
import javax.annotation.Generated;
import com.amazonaws.protocol.StructuredPojo;
import com.amazonaws.protocol.ProtocolMarshaller;
/**
*
* Specifies an item and related attribute values to retrieve in a TransactGetItem object.
*
*
* @see AWS API Documentation
*/
@Generated("com.amazonaws:aws-java-sdk-code-generator")
public class Get implements Serializable, Cloneable, StructuredPojo {
/**
*
* A map of attribute names to AttributeValue objects that specifies the primary key of the item to
* retrieve.
*
*/
private java.util.Map key;
/**
*
* The name of the table from which to retrieve the specified item.
*
*/
private String tableName;
/**
*
* A string that identifies one or more attributes of the specified item to retrieve from the table. The attributes
* in the expression must be separated by commas. If no attribute names are specified, then all attributes of the
* specified item are returned. If any of the requested attributes are not found, they do not appear in the result.
*
*/
private String projectionExpression;
/**
*
* One or more substitution tokens for attribute names in the ProjectionExpression parameter.
*
*/
private java.util.Map expressionAttributeNames;
/**
*
* A map of attribute names to AttributeValue objects that specifies the primary key of the item to
* retrieve.
*
*
* @return A map of attribute names to AttributeValue objects that specifies the primary key of the
* item to retrieve.
*/
public java.util.Map getKey() {
return key;
}
/**
*
* A map of attribute names to AttributeValue objects that specifies the primary key of the item to
* retrieve.
*
*
* @param key
* A map of attribute names to AttributeValue objects that specifies the primary key of the item
* to retrieve.
*/
public void setKey(java.util.Map key) {
this.key = key;
}
/**
*
* A map of attribute names to AttributeValue objects that specifies the primary key of the item to
* retrieve.
*
*
* @param key
* A map of attribute names to AttributeValue objects that specifies the primary key of the item
* to retrieve.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public Get withKey(java.util.Map key) {
setKey(key);
return this;
}
/**
* Add a single Key entry
*
* @see Get#withKey
* @returns a reference to this object so that method calls can be chained together.
*/
public Get addKeyEntry(String key, AttributeValue value) {
if (null == this.key) {
this.key = new java.util.HashMap();
}
if (this.key.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.key.put(key, value);
return this;
}
/**
* Removes all the entries added into Key.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public Get clearKeyEntries() {
this.key = null;
return this;
}
/**
*
* The name of the table from which to retrieve the specified item.
*
*
* @param tableName
* The name of the table from which to retrieve the specified item.
*/
public void setTableName(String tableName) {
this.tableName = tableName;
}
/**
*
* The name of the table from which to retrieve the specified item.
*
*
* @return The name of the table from which to retrieve the specified item.
*/
public String getTableName() {
return this.tableName;
}
/**
*
* The name of the table from which to retrieve the specified item.
*
*
* @param tableName
* The name of the table from which to retrieve the specified item.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public Get withTableName(String tableName) {
setTableName(tableName);
return this;
}
/**
*
* A string that identifies one or more attributes of the specified item to retrieve from the table. The attributes
* in the expression must be separated by commas. If no attribute names are specified, then all attributes of the
* specified item are returned. If any of the requested attributes are not found, they do not appear in the result.
*
*
* @param projectionExpression
* A string that identifies one or more attributes of the specified item to retrieve from the table. The
* attributes in the expression must be separated by commas. If no attribute names are specified, then all
* attributes of the specified item are returned. If any of the requested attributes are not found, they do
* not appear in the result.
*/
public void setProjectionExpression(String projectionExpression) {
this.projectionExpression = projectionExpression;
}
/**
*
* A string that identifies one or more attributes of the specified item to retrieve from the table. The attributes
* in the expression must be separated by commas. If no attribute names are specified, then all attributes of the
* specified item are returned. If any of the requested attributes are not found, they do not appear in the result.
*
*
* @return A string that identifies one or more attributes of the specified item to retrieve from the table. The
* attributes in the expression must be separated by commas. If no attribute names are specified, then all
* attributes of the specified item are returned. If any of the requested attributes are not found, they do
* not appear in the result.
*/
public String getProjectionExpression() {
return this.projectionExpression;
}
/**
*
* A string that identifies one or more attributes of the specified item to retrieve from the table. The attributes
* in the expression must be separated by commas. If no attribute names are specified, then all attributes of the
* specified item are returned. If any of the requested attributes are not found, they do not appear in the result.
*
*
* @param projectionExpression
* A string that identifies one or more attributes of the specified item to retrieve from the table. The
* attributes in the expression must be separated by commas. If no attribute names are specified, then all
* attributes of the specified item are returned. If any of the requested attributes are not found, they do
* not appear in the result.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public Get withProjectionExpression(String projectionExpression) {
setProjectionExpression(projectionExpression);
return this;
}
/**
*
* One or more substitution tokens for attribute names in the ProjectionExpression parameter.
*
*
* @return One or more substitution tokens for attribute names in the ProjectionExpression parameter.
*/
public java.util.Map getExpressionAttributeNames() {
return expressionAttributeNames;
}
/**
*
* One or more substitution tokens for attribute names in the ProjectionExpression parameter.
*
*
* @param expressionAttributeNames
* One or more substitution tokens for attribute names in the ProjectionExpression parameter.
*/
public void setExpressionAttributeNames(java.util.Map expressionAttributeNames) {
this.expressionAttributeNames = expressionAttributeNames;
}
/**
*
* One or more substitution tokens for attribute names in the ProjectionExpression parameter.
*
*
* @param expressionAttributeNames
* One or more substitution tokens for attribute names in the ProjectionExpression parameter.
* @return Returns a reference to this object so that method calls can be chained together.
*/
public Get withExpressionAttributeNames(java.util.Map expressionAttributeNames) {
setExpressionAttributeNames(expressionAttributeNames);
return this;
}
/**
* Add a single ExpressionAttributeNames entry
*
* @see Get#withExpressionAttributeNames
* @returns a reference to this object so that method calls can be chained together.
*/
public Get addExpressionAttributeNamesEntry(String key, String value) {
if (null == this.expressionAttributeNames) {
this.expressionAttributeNames = new java.util.HashMap();
}
if (this.expressionAttributeNames.containsKey(key))
throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
this.expressionAttributeNames.put(key, value);
return this;
}
/**
* Removes all the entries added into ExpressionAttributeNames.
*
* @return Returns a reference to this object so that method calls can be chained together.
*/
public Get clearExpressionAttributeNamesEntries() {
this.expressionAttributeNames = null;
return this;
}
/**
* Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
* redacted from this string using a placeholder value.
*
* @return A string representation of this object.
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{");
if (getKey() != null)
sb.append("Key: ").append(getKey()).append(",");
if (getTableName() != null)
sb.append("TableName: ").append(getTableName()).append(",");
if (getProjectionExpression() != null)
sb.append("ProjectionExpression: ").append(getProjectionExpression()).append(",");
if (getExpressionAttributeNames() != null)
sb.append("ExpressionAttributeNames: ").append(getExpressionAttributeNames());
sb.append("}");
return sb.toString();
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (obj instanceof Get == false)
return false;
Get other = (Get) obj;
if (other.getKey() == null ^ this.getKey() == null)
return false;
if (other.getKey() != null && other.getKey().equals(this.getKey()) == false)
return false;
if (other.getTableName() == null ^ this.getTableName() == null)
return false;
if (other.getTableName() != null && other.getTableName().equals(this.getTableName()) == false)
return false;
if (other.getProjectionExpression() == null ^ this.getProjectionExpression() == null)
return false;
if (other.getProjectionExpression() != null && other.getProjectionExpression().equals(this.getProjectionExpression()) == false)
return false;
if (other.getExpressionAttributeNames() == null ^ this.getExpressionAttributeNames() == null)
return false;
if (other.getExpressionAttributeNames() != null && other.getExpressionAttributeNames().equals(this.getExpressionAttributeNames()) == false)
return false;
return true;
}
@Override
public int hashCode() {
final int prime = 31;
int hashCode = 1;
hashCode = prime * hashCode + ((getKey() == null) ? 0 : getKey().hashCode());
hashCode = prime * hashCode + ((getTableName() == null) ? 0 : getTableName().hashCode());
hashCode = prime * hashCode + ((getProjectionExpression() == null) ? 0 : getProjectionExpression().hashCode());
hashCode = prime * hashCode + ((getExpressionAttributeNames() == null) ? 0 : getExpressionAttributeNames().hashCode());
return hashCode;
}
@Override
public Get clone() {
try {
return (Get) super.clone();
} catch (CloneNotSupportedException e) {
throw new IllegalStateException("Got a CloneNotSupportedException from Object.clone() " + "even though we're Cloneable!", e);
}
}
@com.amazonaws.annotation.SdkInternalApi
@Override
public void marshall(ProtocolMarshaller protocolMarshaller) {
com.amazonaws.services.dynamodbv2.model.transform.GetMarshaller.getInstance().marshall(this, protocolMarshaller);
}
}