com.amazonaws.services.dynamodbv2.document

Class PrimaryKey

java.lang.Object

com.amazonaws.services.dynamodbv2.document.PrimaryKey

public class PrimaryKey
extends Object

Used to represent a primary key that has one or multiple key components.

Constructor Summary

Constructors

Constructor and Description
PrimaryKey()
PrimaryKey(KeyAttribute... components) Constructs with the specified key components.
PrimaryKey(String hashKeyName, Object hashKeyValue) Constructs with a hash key.
PrimaryKey(String hashKeyName, Object hashKeyValue, String rangeKeyName, Object rangeKeyValue) Constructs with a hash key and a range key.

Method Summary

Modifier and Type	Method and Description
PrimaryKey	addComponent(String keyAttributeName, Object keyAttributeValue) Add a key component to this primary key.
PrimaryKey	addComponents(KeyAttribute... components) Add one or multiple key components to this primary key.
boolean	equals(Object in)
Set<String>	getComponentNameSet() Returns all the key component names of this primary key as a set.
Collection<KeyAttribute>	getComponents() Returns all the key components of this primary key.
boolean	hasComponent(String attrName) Returns true if this primary has the specified key attribute name; false otherwise.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PrimaryKey

public PrimaryKey()

PrimaryKey

public PrimaryKey(KeyAttribute... components)

Constructs with the specified key components.

PrimaryKey

public PrimaryKey(String hashKeyName,
                  Object hashKeyValue)

Constructs with a hash key.

PrimaryKey

public PrimaryKey(String hashKeyName,
                  Object hashKeyValue,
                  String rangeKeyName,
                  Object rangeKeyValue)

Constructs with a hash key and a range key.

Method Detail

getComponents

public Collection<KeyAttribute> getComponents()

Returns all the key components of this primary key.

getComponentNameSet

public Set<String> getComponentNameSet()

Returns all the key component names of this primary key as a set.

hasComponent

public boolean hasComponent(String attrName)

Returns true if this primary has the specified key attribute name; false otherwise.

addComponents

public PrimaryKey addComponents(KeyAttribute... components)

Add one or multiple key components to this primary key. Note adding a key component with the same name as that of an existing one would overwrite and become a single key component instead of two.

addComponent

public PrimaryKey addComponent(String keyAttributeName,
                               Object keyAttributeValue)

Add a key component to this primary key. Note adding a key component with the same name as that of an existing one would overwrite and become a single key component instead of two.

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object in)

Overrides:

equals in class Object