com.jcabi.dynamo

Class Attributes

java.lang.Object

com.jcabi.dynamo.Attributes

All Implemented Interfaces:

Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

@Immutable
@Loggable(value=1)
public final class Attributes
extends Object
implements Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

DynamoDB item attributes.

It's a convenient immutable builder of a map of attribute values for DynamoDB put operation. Use it like this:

Map<String, AttributeValue> attributes = new Attributes()
   .with("hash", "some value")
   .with("range", 12345);
 

Version:

$Id$

Author:

Yegor Bugayenko (yegor@tpc2.com)

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
Attributes() Private ctor.
Attributes(Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue> map) Private ctor.

Method Summary

Methods

Modifier and Type	Method and Description
Map<String,com.amazonaws.services.dynamodbv2.model.ExpectedAttributeValue>	asKeys() Convert them to a map of expected values.
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>>	entrySet()
com.amazonaws.services.dynamodbv2.model.AttributeValue	get(Object key)
boolean	isEmpty()
Set<String>	keySet()
Attributes	only(Collection<String> keys) Filter out all keys except provided ones.
com.amazonaws.services.dynamodbv2.model.AttributeValue	put(String key, com.amazonaws.services.dynamodbv2.model.AttributeValue value)
void	putAll(Map<? extends String,? extends com.amazonaws.services.dynamodbv2.model.AttributeValue> map)
com.amazonaws.services.dynamodbv2.model.AttributeValue	remove(Object key)
int	size()
String	toString()
Collection<com.amazonaws.services.dynamodbv2.model.AttributeValue>	values()
Attributes	with(Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue> map) With these attributes.
Attributes	with(String name, com.amazonaws.services.dynamodbv2.model.AttributeValue value) With this attribute.
Attributes	with(String name, Object value) With this attribute.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

Attributes

public Attributes()

Private ctor.

Attributes

public Attributes(@NotNull(message="map of attributes can\'t be NULL")
          Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue> map)

Private ctor.

Parameters:

map - Map of them

Method Detail

with

public Attributes with(@NotNull(message="attribute name can\'t be NULL")
              String name,
              @NotNull(message="value can\'t be NULL")
              com.amazonaws.services.dynamodbv2.model.AttributeValue value)

With this attribute.

Parameters:

name - Attribute name

value - The value

Returns:

Attributes

with

public Attributes with(@NotNull(message="map of attributes can\'t be NULL")
              Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue> map)

With these attributes.

Parameters:

map - Attributes to add

Returns:

Attributes

asKeys

public Map<String,com.amazonaws.services.dynamodbv2.model.ExpectedAttributeValue> asKeys()

Convert them to a map of expected values.

Returns:

Expected values

with

public Attributes with(@NotNull(message="attribute name can\'t be NULL")
              String name,
              @NotNull(message="value can\'t be NULL")
              Object value)

With this attribute.

Parameters:

name - Attribute name

value - The value

Returns:

Attributes

only

public Attributes only(@NotNull(message="key names can\'t be NULL")
              Collection<String> keys)

Filter out all keys except provided ones.

Parameters:

keys - Keys to leave in the map

Returns:

Attributes

toString

public String toString()

Overrides:

toString in class Object

size

public int size()

Specified by:

size in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

get

public com.amazonaws.services.dynamodbv2.model.AttributeValue get(Object key)

Specified by:

get in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

keySet

public Set<String> keySet()

Specified by:

keySet in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

values

public Collection<com.amazonaws.services.dynamodbv2.model.AttributeValue> values()

Specified by:

values in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

entrySet

public Set<Map.Entry<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>> entrySet()

Specified by:

entrySet in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

put

public com.amazonaws.services.dynamodbv2.model.AttributeValue put(String key,
                                                         com.amazonaws.services.dynamodbv2.model.AttributeValue value)

Specified by:

put in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

remove

public com.amazonaws.services.dynamodbv2.model.AttributeValue remove(Object key)

Specified by:

remove in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

putAll

public void putAll(Map<? extends String,? extends com.amazonaws.services.dynamodbv2.model.AttributeValue> map)

Specified by:

putAll in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>

clear

public void clear()

Specified by:

clear in interface Map<String,com.amazonaws.services.dynamodbv2.model.AttributeValue>