Package com.google.protobuf
Class Extension<ContainingType extends MessageLite,Type>
- java.lang.Object
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- com.google.protobuf.Extension<ContainingType,Type>
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- 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)
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected static class
Extension.ExtensionType
The API type that the extension is used for.static class
Extension.MessageType
Type of a message extension.
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Constructor Summary
Constructors Constructor Description Extension()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description 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)
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Method Detail
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getNumber
public abstract int getNumber()
Returns the field number of the extension.
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getLiteType
public abstract WireFormat.FieldType getLiteType()
Returns the type of the field.
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isRepeated
public abstract boolean isRepeated()
Returns whether it is a repeated field.
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getDescriptor
public abstract Descriptors.FieldDescriptor getDescriptor()
Returns the descriptor of the extension.
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getDefaultValue
public abstract Type getDefaultValue()
Returns the default value of the extension field.
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getMessageDefaultInstance
public abstract MessageLite getMessageDefaultInstance()
Returns the default instance of the extension field, if it's a message extension.
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getExtensionType
protected Extension.ExtensionType getExtensionType()
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getMessageType
public Extension.MessageType getMessageType()
If the extension is a message extension (i.e., getLiteType() == MESSAGE), returns the type of the message, otherwise undefined.
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fromReflectionType
protected abstract java.lang.Object fromReflectionType(java.lang.Object value)
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singularFromReflectionType
protected abstract java.lang.Object singularFromReflectionType(java.lang.Object value)
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toReflectionType
protected abstract java.lang.Object toReflectionType(java.lang.Object value)
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singularToReflectionType
protected abstract java.lang.Object singularToReflectionType(java.lang.Object value)
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