Package com.jcabi.dynamo

Class Attributes

java.lang.Object
com.jcabi.dynamo.Attributes
All Implemented Interfaces:
Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>
@Immutable @Loggable(1) public final class Attributes extends Object implements Map<String,software.amazon.awssdk.services.dynamodb.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);
Since:
0.1

  • Constructor Details

    • Attributes

      public Attributes()
      Private ctor.

    • Attributes

      public Attributes(Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue> map)
      Private ctor.
      Parameters:
      map - Map of them

  • Method Details

    • with

      public Attributes with(String name, software.amazon.awssdk.services.dynamodb.model.AttributeValue value)
      With this attribute.
      Parameters:
      name - Attribute name
      value - The value
      Returns:
      Attributes

    • with

      public Attributes with(Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue> map)
      With these attributes.
      Parameters:
      map - Attributes to add
      Returns:
      Attributes

    • asKeys

      public Map<String,software.amazon.awssdk.services.dynamodb.model.ExpectedAttributeValue> asKeys()
      Convert them to a map of expected values.
      Returns:
      Expected values

    • with

      public Attributes with(String name, Long value)
      With this attribute.
      Parameters:
      name - Attribute name
      value - The value
      Returns:
      Attributes

    • with

      public Attributes with(String name, Integer value)
      With this attribute.
      Parameters:
      name - Attribute name
      value - The value
      Returns:
      Attributes

    • with

      public Attributes with(String name, Object value)
      With this attribute.
      Parameters:
      name - Attribute name
      value - The value
      Returns:
      Attributes

    • only

      public Attributes only(Iterable<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,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • containsKey

      public boolean containsKey(Object key)
      Specified by:
      containsKey in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • containsValue

      public boolean containsValue(Object value)
      Specified by:
      containsValue in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • get

      public software.amazon.awssdk.services.dynamodb.model.AttributeValue get(Object key)
      Specified by:
      get in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • keySet

      public Set<String> keySet()
      Specified by:
      keySet in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • values

      public Collection<software.amazon.awssdk.services.dynamodb.model.AttributeValue> values()
      Specified by:
      values in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • entrySet

      public Set<Map.Entry<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>> entrySet()
      Specified by:
      entrySet in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • put

      public software.amazon.awssdk.services.dynamodb.model.AttributeValue put(String key, software.amazon.awssdk.services.dynamodb.model.AttributeValue value)
      Specified by:
      put in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • remove

      public software.amazon.awssdk.services.dynamodb.model.AttributeValue remove(Object key)
      Specified by:
      remove in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • putAll

      public void putAll(Map<? extends String,? extends software.amazon.awssdk.services.dynamodb.model.AttributeValue> map)
      Specified by:
      putAll in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>

    • clear

      public void clear()
      Specified by:
      clear in interface Map<String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>