com.google.protobuf
Class Extension<ContainingType extends MessageLite,Type>

java.lang.Object
  extended by com.google.protobuf.Extension<ContainingType,Type>
Direct Known Subclasses:
GeneratedMessage.GeneratedExtension

public abstract class Extension<ContainingType extends MessageLite,Type>
extends java.lang.Object

Interface that generated extensions implement.

Author:
liujisi@google.com (Jisi Liu)

Nested Class Summary
protected static class Extension.ExtensionType
          The API type that the extension is used for.
static class Extension.MessageType
          Type of a message extension.
 
Constructor Summary
Extension()
           
 
Method Summary
protected abstract  java.lang.Object fromReflectionType(java.lang.Object value)
           
abstract  Type getDefaultValue()
          Returns the default value of the extension field.
abstract  Descriptors.FieldDescriptor getDescriptor()
          Returns the descriptor of the extension.
protected  Extension.ExtensionType getExtensionType()
           
abstract  WireFormat.FieldType getLiteType()
          Returns the type of the field.
abstract  MessageLite getMessageDefaultInstance()
          Returns the default instance of the extension field, if it's a message extension.
 Extension.MessageType getMessageType()
          If the extension is a message extension (i.e., getLiteType() == MESSAGE), returns the type of the message, otherwise undefined.
abstract  int getNumber()
          Returns the field number of the extension.
abstract  boolean isRepeated()
          Returns whether it is a repeated field.
protected abstract  java.lang.Object singularFromReflectionType(java.lang.Object value)
           
protected abstract  java.lang.Object singularToReflectionType(java.lang.Object value)
           
protected abstract  java.lang.Object toReflectionType(java.lang.Object value)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Extension

public Extension()
Method Detail

getNumber

public abstract int getNumber()
Returns the field number of the extension.


getLiteType

public abstract WireFormat.FieldType getLiteType()
Returns the type of the field.


isRepeated

public abstract boolean isRepeated()
Returns whether it is a repeated field.


getDescriptor

public abstract Descriptors.FieldDescriptor getDescriptor()
Returns the descriptor of the extension.


getDefaultValue

public abstract Type getDefaultValue()
Returns the default value of the extension field.


getMessageDefaultInstance

public abstract MessageLite getMessageDefaultInstance()
Returns the default instance of the extension field, if it's a message extension.


getExtensionType

protected Extension.ExtensionType getExtensionType()

getMessageType

public Extension.MessageType getMessageType()
If the extension is a message extension (i.e., getLiteType() == MESSAGE), returns the type of the message, otherwise undefined.


fromReflectionType

protected abstract java.lang.Object fromReflectionType(java.lang.Object value)

singularFromReflectionType

protected abstract java.lang.Object singularFromReflectionType(java.lang.Object value)

toReflectionType

protected abstract java.lang.Object toReflectionType(java.lang.Object value)

singularToReflectionType

protected abstract java.lang.Object singularToReflectionType(java.lang.Object value)