Package com.google.protobuf

## Class GeneratedMessage.ExtendableBuilder<MessageType extends GeneratedMessage.ExtendableMessage,​BuilderType extends GeneratedMessage.ExtendableBuilder>

- java.lang.Object
- - com.google.protobuf.AbstractMessageLite.Builder<BuilderType>
  - - com.google.protobuf.AbstractMessage.Builder<BuilderType>
    - - com.google.protobuf.GeneratedMessage.Builder<BuilderType>
      - - com.google.protobuf.GeneratedMessage.ExtendableBuilder<MessageType,​BuilderType>

All Implemented Interfaces:
  `GeneratedMessage.ExtendableMessageOrBuilder<MessageType>`, `Message.Builder`, `MessageLite.Builder`, `MessageLiteOrBuilder`, `MessageOrBuilder`, `java.lang.Cloneable`

Direct Known Subclasses:
  `DescriptorProtos.EnumOptions.Builder`, `DescriptorProtos.EnumValueOptions.Builder`, `DescriptorProtos.FieldOptions.Builder`, `DescriptorProtos.FileOptions.Builder`, `DescriptorProtos.MessageOptions.Builder`, `DescriptorProtos.MethodOptions.Builder`, `DescriptorProtos.ServiceOptions.Builder`

Enclosing class:
  GeneratedMessage

    public abstract static class GeneratedMessage.ExtendableBuilder<MessageType extends GeneratedMessage.ExtendableMessage,​BuilderType extends GeneratedMessage.ExtendableBuilder>
    extends GeneratedMessage.Builder<BuilderType>
    implements GeneratedMessage.ExtendableMessageOrBuilder<MessageType>

Generated message builders for message types that contain extension ranges subclass this.

This class implements type-safe accessors for extensions. They implement all the same operations that you can do with normal fields -- e.g. "get", "set", and "add" -- but for extensions. The extensions are identified using instances of the class `GeneratedMessage.GeneratedExtension`; the protocol compiler generates a static instance of this class for every extension in its input. Through the magic of generics, all is made type-safe.

For example, imagine you have the `.proto` file:

     option java_class = "MyProto";

     message Foo {
       extensions 1000 to max;
     }

     extend Foo {
       optional int32 bar;
     }

Then you might write code like:

     MyProto.Foo foo =
       MyProto.Foo.newBuilder()
         .setExtension(MyProto.bar, 123)
         .build();

See also `GeneratedMessage.ExtendableMessage`.

### Constructor Summary

Constructors
`protected` `ExtendableBuilder()`
`protected` `ExtendableBuilder​(GeneratedMessage.BuilderParent parent)`

### Method Summary

All Methods Instance Methods Concrete Methods
`<Type> BuilderType` `addExtension​(Extension<MessageType,​java.util.List<Type>> extension, Type value)` Append a value to a repeated extension.
`BuilderType` `addRepeatedField​(Descriptors.FieldDescriptor field, java.lang.Object value)` Like `setRepeatedField`, but appends the value as a new element.
`BuilderType` `clear()` Called by the initialization and clear code paths to allow subclasses to reset any of their builtin fields back to the initial values.
`<Type> BuilderType` `clearExtension​(Extension<MessageType,​?> extension)` Clear an extension.
`BuilderType` `clearField​(Descriptors.FieldDescriptor field)` Clears the field.
`BuilderType` `clone()` Clones the Builder.
`protected boolean` `extensionsAreInitialized()` Called by subclasses to check if all extensions are initialized.
`java.util.Map<Descriptors.FieldDescriptor,​java.lang.Object>` `getAllFields()` Returns a collection of all the fields in this message which are set and their corresponding values.
`<Type> Type` `getExtension​(Extension<MessageType,​java.util.List<Type>> extension, int index)` Get one element of a repeated extension.
`<Type> Type` `getExtension​(Extension<MessageType,​Type> extension)` Get the value of an extension.
`<Type> int` `getExtensionCount​(Extension<MessageType,​java.util.List<Type>> extension)` Get the number of elements in a repeated extension.
`java.lang.Object` `getField​(Descriptors.FieldDescriptor field)` Obtains the value of the given field, or the default value if it is not set.
`java.lang.Object` `getRepeatedField​(Descriptors.FieldDescriptor field, int index)` Gets an element of a repeated field.
`int` `getRepeatedFieldCount​(Descriptors.FieldDescriptor field)` Gets the number of elements of a repeated field.
`<Type> boolean` `hasExtension​(Extension<MessageType,​Type> extension)` Check if a singular extension is present.
`boolean` `hasField​(Descriptors.FieldDescriptor field)` Returns true if the given field is set.
`boolean` `isInitialized()` Returns true if all required fields in the message and all embedded messages are set, false otherwise.
`protected void` `mergeExtensionFields​(GeneratedMessage.ExtendableMessage other)`
`protected boolean` `parseUnknownField​(CodedInputStream input, UnknownFieldSet.Builder unknownFields, ExtensionRegistryLite extensionRegistry, int tag)` Called by subclasses to parse an unknown field or an extension.
`<Type> BuilderType` `setExtension​(Extension<MessageType,​java.util.List<Type>> extension, int index, Type value)` Set the value of one element of a repeated extension.
`<Type> BuilderType` `setExtension​(Extension<MessageType,​Type> extension, Type value)` Set the value of an extension.
`BuilderType` `setField​(Descriptors.FieldDescriptor field, java.lang.Object value)` Sets a field to the given value.
`BuilderType` `setRepeatedField​(Descriptors.FieldDescriptor field, int index, java.lang.Object value)` Sets an element of a repeated field to the given value.

### Methods inherited from class com.google.protobuf.GeneratedMessage.Builder

`clearOneof, getDescriptorForType, getFieldBuilder, getOneofFieldDescriptor, getParentForChildren, getUnknownFields, hasOneof, internalGetFieldAccessorTable, isClean, markClean, mergeUnknownFields, newBuilderForField, onBuilt, onChanged, setUnknownFields`

### Methods inherited from class com.google.protobuf.AbstractMessage.Builder

`findInitializationErrors, getInitializationErrorString, mergeDelimitedFrom, mergeDelimitedFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, newUninitializedMessageException, toString`

### Methods inherited from class com.google.protobuf.AbstractMessageLite.Builder

`addAll, newUninitializedMessageException`

### Methods inherited from class java.lang.Object

`equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

### Methods inherited from interface com.google.protobuf.GeneratedMessage.ExtendableMessageOrBuilder

`getDefaultInstanceForType`

### Methods inherited from interface com.google.protobuf.Message.Builder

`build, buildPartial`

### Methods inherited from interface com.google.protobuf.MessageOrBuilder

`findInitializationErrors, getInitializationErrorString, getOneofFieldDescriptor, getUnknownFields, hasOneof`

### Constructor Detail

#### ExtendableBuilder

    protected ExtendableBuilder()

#### ExtendableBuilder

    protected ExtendableBuilder​(GeneratedMessage.BuilderParent parent)

### Method Detail

#### clear

    public BuilderType clear()

Description copied from class: `GeneratedMessage.Builder`
Called by the initialization and clear code paths to allow subclasses to reset any of their builtin fields back to the initial values.

Specified by:
  `clear` in interface `Message.Builder`
Specified by:
  `clear` in interface `MessageLite.Builder`
Overrides:
  `clear` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### clone

    public BuilderType clone()

Description copied from interface: `MessageLite.Builder`
Clones the Builder.

Specified by:
  `clone` in interface `Message.Builder`
Specified by:
  `clone` in interface `MessageLite.Builder`
Overrides:
  `clone` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`
See Also:
  `Object.clone()`

#### hasExtension

    public final <Type> boolean hasExtension​(Extension<MessageType,​Type> extension)

Check if a singular extension is present.

Specified by:
  `hasExtension` in interface `GeneratedMessage.ExtendableMessageOrBuilder<MessageType extends GeneratedMessage.ExtendableMessage>`

#### getExtensionCount

    public final <Type> int getExtensionCount​(Extension<MessageType,​java.util.List<Type>> extension)

Get the number of elements in a repeated extension.

Specified by:
  `getExtensionCount` in interface `GeneratedMessage.ExtendableMessageOrBuilder<MessageType extends GeneratedMessage.ExtendableMessage>`

#### getExtension

    public final <Type> Type getExtension​(Extension<MessageType,​Type> extension)

Get the value of an extension.

Specified by:
  `getExtension` in interface `GeneratedMessage.ExtendableMessageOrBuilder<MessageType extends GeneratedMessage.ExtendableMessage>`

#### getExtension

    public final <Type> Type getExtension​(Extension<MessageType,​java.util.List<Type>> extension,
                                          int index)

Get one element of a repeated extension.

Specified by:
  `getExtension` in interface `GeneratedMessage.ExtendableMessageOrBuilder<MessageType extends GeneratedMessage.ExtendableMessage>`

#### setExtension

    public final <Type> BuilderType setExtension​(Extension<MessageType,​Type> extension,
                                                 Type value)

Set the value of an extension.

#### setExtension

    public final <Type> BuilderType setExtension​(Extension<MessageType,​java.util.List<Type>> extension,
                                                 int index,
                                                 Type value)

Set the value of one element of a repeated extension.

#### addExtension

    public final <Type> BuilderType addExtension​(Extension<MessageType,​java.util.List<Type>> extension,
                                                 Type value)

Append a value to a repeated extension.

#### clearExtension

    public final <Type> BuilderType clearExtension​(Extension<MessageType,​?> extension)

Clear an extension.

#### extensionsAreInitialized

    protected boolean extensionsAreInitialized()

Called by subclasses to check if all extensions are initialized.

#### isInitialized

    public boolean isInitialized()

Description copied from interface: `MessageLiteOrBuilder`
Returns true if all required fields in the message and all embedded messages are set, false otherwise.

See also: `MessageOrBuilder.getInitializationErrorString()`

Specified by:
  `isInitialized` in interface `MessageLiteOrBuilder`
Overrides:
  `isInitialized` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### parseUnknownField

    protected boolean parseUnknownField​(CodedInputStream input,
                                        UnknownFieldSet.Builder unknownFields,
                                        ExtensionRegistryLite extensionRegistry,
                                        int tag)
                                 throws java.io.IOException

Called by subclasses to parse an unknown field or an extension.

Overrides:
  `parseUnknownField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`
Returns:
  `true` unless the tag is an end-group tag.
Throws:
  `java.io.IOException`

#### getAllFields

    public java.util.Map<Descriptors.FieldDescriptor,​java.lang.Object> getAllFields()

Description copied from interface: `MessageOrBuilder`
Returns a collection of all the fields in this message which are set and their corresponding values. A singular ("required" or "optional") field is set iff hasField() returns true for that field. A "repeated" field is set iff getRepeatedFieldCount() is greater than zero. The values are exactly what would be returned by calling `MessageOrBuilder.getField(Descriptors.FieldDescriptor)` for each field. The map is guaranteed to be a sorted map, so iterating over it will return fields in order by field number.
If this is for a builder, the returned map may or may not reflect future changes to the builder. Either way, the returned map is itself unmodifiable.

Specified by:
  `getAllFields` in interface `MessageOrBuilder`
Overrides:
  `getAllFields` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### getField

    public java.lang.Object getField​(Descriptors.FieldDescriptor field)

Description copied from interface: `MessageOrBuilder`
Obtains the value of the given field, or the default value if it is not set. For primitive fields, the boxed primitive value is returned. For enum fields, the EnumValueDescriptor for the value is returned. For embedded message fields, the sub-message is returned. For repeated fields, a java.util.List is returned.

Specified by:
  `getField` in interface `MessageOrBuilder`
Overrides:
  `getField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### getRepeatedFieldCount

    public int getRepeatedFieldCount​(Descriptors.FieldDescriptor field)

Description copied from interface: `MessageOrBuilder`
Gets the number of elements of a repeated field. This is exactly equivalent to calling the generated "Count" accessor method corresponding to the field.

Specified by:
  `getRepeatedFieldCount` in interface `MessageOrBuilder`
Overrides:
  `getRepeatedFieldCount` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### getRepeatedField

    public java.lang.Object getRepeatedField​(Descriptors.FieldDescriptor field,
                                             int index)

Description copied from interface: `MessageOrBuilder`
Gets an element of a repeated field. For primitive fields, the boxed primitive value is returned. For enum fields, the EnumValueDescriptor for the value is returned. For embedded message fields, the sub-message is returned.

Specified by:
  `getRepeatedField` in interface `MessageOrBuilder`
Overrides:
  `getRepeatedField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### hasField

    public boolean hasField​(Descriptors.FieldDescriptor field)

Description copied from interface: `MessageOrBuilder`
Returns true if the given field is set. This is exactly equivalent to calling the generated "has" accessor method corresponding to the field.

Specified by:
  `hasField` in interface `MessageOrBuilder`
Overrides:
  `hasField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### setField

    public BuilderType setField​(Descriptors.FieldDescriptor field,
                                java.lang.Object value)

Description copied from interface: `Message.Builder`
Sets a field to the given value. The value must be of the correct type for this field, i.e. the same type that `MessageOrBuilder.getField(Descriptors.FieldDescriptor)` would return.

Specified by:
  `setField` in interface `Message.Builder`
Overrides:
  `setField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### clearField

    public BuilderType clearField​(Descriptors.FieldDescriptor field)

Description copied from interface: `Message.Builder`
Clears the field. This is exactly equivalent to calling the generated "clear" accessor method corresponding to the field.

Specified by:
  `clearField` in interface `Message.Builder`
Overrides:
  `clearField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### setRepeatedField

    public BuilderType setRepeatedField​(Descriptors.FieldDescriptor field,
                                        int index,
                                        java.lang.Object value)

Description copied from interface: `Message.Builder`
Sets an element of a repeated field to the given value. The value must be of the correct type for this field, i.e. the same type that `MessageOrBuilder.getRepeatedField(Descriptors.FieldDescriptor,int)` would return.

Specified by:
  `setRepeatedField` in interface `Message.Builder`
Overrides:
  `setRepeatedField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### addRepeatedField

    public BuilderType addRepeatedField​(Descriptors.FieldDescriptor field,
                                        java.lang.Object value)

Description copied from interface: `Message.Builder`
Like `setRepeatedField`, but appends the value as a new element.

Specified by:
  `addRepeatedField` in interface `Message.Builder`
Overrides:
  `addRepeatedField` in class `GeneratedMessage.Builder<BuilderType extends GeneratedMessage.ExtendableBuilder>`

#### mergeExtensionFields

    protected final void mergeExtensionFields​(GeneratedMessage.ExtendableMessage other)