com.vaadin.shared.ui.dnd.criteria

Class Payload

java.lang.Object

com.vaadin.shared.ui.dnd.criteria.Payload

All Implemented Interfaces:

Serializable

public class Payload
extends Object
implements Serializable

Stores key/value pairs and the value type. Payload is set in DragSourceExtension and is transferred during drag operation. It is used for comparing values to acceptance criteria.

Since:

8.1

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Payload.ValueType Type of the payload's value.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ITEM_PREFIX Prefix of the payload data type.

Constructor Summary

Constructors

Constructor and Description
Payload(String key, String value, Payload.ValueType valueType) Creates a payload object.

Method Summary

Modifier and Type	Method and Description
String	getKey() Gets the key of this payload.
String	getPayloadString() Returns the string representation of this payload.
String	getValue() Gets the value of this payload.
Payload.ValueType	getValueType() Gets the value type of this payload.
static Payload	parse(String payloadString) Parses a payload string and returns a payload object represented by that string.

Methods inherited from class java.lang.Object

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

Field Detail

ITEM_PREFIX

public static final String ITEM_PREFIX

Prefix of the payload data type.

See Also:

Constant Field Values

Constructor Detail

Payload

public Payload(String key,
               String value,
               Payload.ValueType valueType)

Creates a payload object.

Parameters:

key - key of the payload

value - value of the payload

valueType - type of the payload value

Method Detail

getKey

public String getKey()

Gets the key of this payload.

Returns:

key identifying this payload

getValue

public String getValue()

Gets the value of this payload.

Returns:

value of this payload

getValueType

public Payload.ValueType getValueType()

Gets the value type of this payload.

Returns:

the type of the value of this payload

getPayloadString

public String getPayloadString()

Returns the string representation of this payload. It is used as the data type in the DataTransfer object.

Returns:

the string representation of this payload

parse

public static Payload parse(String payloadString)

Parses a payload string and returns a payload object represented by that string.

Parameters:

payloadString - string that represents a payload object

Returns:

a payload object represented by the given string