com.amazonaws.services.dynamodb.model
Class ExpectedAttributeValue

java.lang.Object
  com.amazonaws.services.dynamodb.model.ExpectedAttributeValue

public class ExpectedAttributeValue
extends Object

Allows you to provide an attribute name, and whether or not Amazon DynamoDB should check to see if the attribute value already exists; or if the attribute value exists and has a particular value before changing it.

Constructor Summary

ExpectedAttributeValue()
Default constructor for a new ExpectedAttributeValue object.

ExpectedAttributeValue(AttributeValue value)
Constructs a new ExpectedAttributeValue object.

ExpectedAttributeValue(Boolean exists)
Constructs a new ExpectedAttributeValue object.

Method Summary

boolean	equals(Object obj)
Boolean	getExists() Specify whether or not a value already exists for the attribute name-value pair.
AttributeValue	getValue() Specify whether or not a value already exists and has a specific content for the attribute name-value pair.
int	hashCode()
Boolean	isExists() Specify whether or not a value already exists for the attribute name-value pair.
void	setExists(Boolean exists) Specify whether or not a value already exists for the attribute name-value pair.
void	setValue(AttributeValue value) Specify whether or not a value already exists and has a specific content for the attribute name-value pair.
String	toString() Returns a string representation of this object; useful for testing and debugging.
ExpectedAttributeValue	withExists(Boolean exists) Specify whether or not a value already exists for the attribute name-value pair.
ExpectedAttributeValue	withValue(AttributeValue value) Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ExpectedAttributeValue

public ExpectedAttributeValue()

Default constructor for a new ExpectedAttributeValue object. Callers should use the setter or fluent setter (with...) methods to initialize this object after creating it.

ExpectedAttributeValue

public ExpectedAttributeValue(AttributeValue value)

Constructs a new ExpectedAttributeValue object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.

Parameters:

value - Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

ExpectedAttributeValue

public ExpectedAttributeValue(Boolean exists)

Constructs a new ExpectedAttributeValue object. Callers should use the setter or fluent setter (with...) methods to initialize any additional object members.

Parameters:

exists - Specify whether or not a value already exists for the attribute name-value pair.

Method Detail

getValue

public AttributeValue getValue()

Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

Returns:

Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

setValue

public void setValue(AttributeValue value)

Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

Parameters:

value - Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

withValue

public ExpectedAttributeValue withValue(AttributeValue value)

Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

Returns a reference to this object so that method calls can be chained together.

Parameters:

value - Specify whether or not a value already exists and has a specific content for the attribute name-value pair.

Returns:

A reference to this updated object so that method calls can be chained together.

isExists

public Boolean isExists()

Specify whether or not a value already exists for the attribute name-value pair.

Returns:

Specify whether or not a value already exists for the attribute name-value pair.

setExists

public void setExists(Boolean exists)

Specify whether or not a value already exists for the attribute name-value pair.

Parameters:

exists - Specify whether or not a value already exists for the attribute name-value pair.

withExists

public ExpectedAttributeValue withExists(Boolean exists)

Specify whether or not a value already exists for the attribute name-value pair.

Returns a reference to this object so that method calls can be chained together.

Parameters:

exists - Specify whether or not a value already exists for the attribute name-value pair.

Returns:

A reference to this updated object so that method calls can be chained together.

getExists

public Boolean getExists()

Specify whether or not a value already exists for the attribute name-value pair.

Returns:

Specify whether or not a value already exists for the attribute name-value pair.

toString

public String toString()

Returns a string representation of this object; useful for testing and debugging.

Overrides:

toString in class Object

Returns:

A string representation of this object.

See Also:

Object.toString()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object