com.google.protobuf

Class DynamicMessage.Builder

java.lang.Object

com.google.protobuf.AbstractMessageLite.Builder

com.google.protobuf.AbstractMessage.Builder<DynamicMessage.Builder>

com.google.protobuf.DynamicMessage.Builder

All Implemented Interfaces:

Message.Builder, MessageLite.Builder, MessageLiteOrBuilder, MessageOrBuilder, Cloneable

Enclosing class:

DynamicMessage

public static final class DynamicMessage.Builder
extends AbstractMessage.Builder<DynamicMessage.Builder>

Builder for DynamicMessages.

Method Summary

Modifier and Type	Method and Description
DynamicMessage.Builder	addRepeatedField(Descriptors.FieldDescriptor field, Object value) Like setRepeatedField, but appends the value as a new element.
DynamicMessage	build() Constructs the message based on the state of the Builder.
DynamicMessage	buildPartial() Like MessageLite.Builder.build(), but does not throw an exception if the message is missing required fields.
DynamicMessage.Builder	clear() Resets all fields to their default values.
DynamicMessage.Builder	clearField(Descriptors.FieldDescriptor field) Clears the field.
DynamicMessage.Builder	clearOneof(Descriptors.OneofDescriptor oneof) TODO(jieluo): Clear it when all subclasses have implemented this method.
DynamicMessage.Builder	clone() Clones the Builder.
Map<Descriptors.FieldDescriptor,Object>	getAllFields() Returns a collection of all the fields in this message which are set and their corresponding values.
DynamicMessage	getDefaultInstanceForType() Get an instance of the type with no fields set.
Descriptors.Descriptor	getDescriptorForType() Get the message's type's descriptor.
Object	getField(Descriptors.FieldDescriptor field) Obtains the value of the given field, or the default value if it is not set.
Message.Builder	getFieldBuilder(Descriptors.FieldDescriptor field) Get a nested builder instance for the given field.
Descriptors.FieldDescriptor	getOneofFieldDescriptor(Descriptors.OneofDescriptor oneof) TODO(jieluo): Clear it when all subclasses have implemented this method.
Object	getRepeatedField(Descriptors.FieldDescriptor field, int index) Gets an element of a repeated field.
Message.Builder	getRepeatedFieldBuilder(Descriptors.FieldDescriptor field, int index) Get a nested builder instance for the given repeated field instance.
int	getRepeatedFieldCount(Descriptors.FieldDescriptor field) Gets the number of elements of a repeated field.
UnknownFieldSet	getUnknownFields() Get the UnknownFieldSet for this message.
boolean	hasField(Descriptors.FieldDescriptor field) Returns true if the given field is set.
boolean	hasOneof(Descriptors.OneofDescriptor oneof) TODO(jieluo): Clear it when all subclasses have implemented this method.
boolean	isInitialized() Returns true if all required fields in the message and all embedded messages are set, false otherwise.
DynamicMessage.Builder	mergeFrom(Message other) Merge other into the message being built.
DynamicMessage.Builder	mergeUnknownFields(UnknownFieldSet unknownFields) Merge some unknown fields into the UnknownFieldSet for this message.
DynamicMessage.Builder	newBuilderForField(Descriptors.FieldDescriptor field) Create a builder for messages of the appropriate type for the given field.
DynamicMessage.Builder	setField(Descriptors.FieldDescriptor field, Object value) Sets a field to the given value.
DynamicMessage.Builder	setRepeatedField(Descriptors.FieldDescriptor field, int index, Object value) Sets an element of a repeated field to the given value.
DynamicMessage.Builder	setUnknownFields(UnknownFieldSet unknownFields) Set the UnknownFieldSet for this message.

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

findInitializationErrors, getInitializationErrorString, getUnknownFieldSetBuilder, internalMergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, mergeFrom, newUninitializedMessageException, setUnknownFieldSetBuilder, toString

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

addAll, addAll, mergeDelimitedFrom, mergeDelimitedFrom, mergeFrom, newUninitializedMessageException

Methods inherited from class java.lang.Object

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

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

mergeDelimitedFrom, mergeDelimitedFrom

Methods inherited from interface com.google.protobuf.MessageLite.Builder

mergeFrom

Method Detail

clear

public DynamicMessage.Builder clear()

Description copied from interface: MessageLite.Builder

Resets all fields to their default values.

Specified by:

clear in interface Message.Builder

Specified by:

clear in interface MessageLite.Builder

Overrides:

clear in class AbstractMessage.Builder<DynamicMessage.Builder>

mergeFrom

public DynamicMessage.Builder mergeFrom(Message other)

Description copied from interface: Message.Builder

Merge other into the message being built. other must have the exact same type as this (i.e. getDescriptorForType() == other.getDescriptorForType()).

Merging occurs as follows. For each field:
* For singular primitive fields, if the field is set in other, then other's value overwrites the value in this message.
* For singular message fields, if the field is set in other, it is merged into the corresponding sub-message of this message using the same merging rules.
* For repeated fields, the elements in other are concatenated with the elements in this message.
* For oneof groups, if the other message has one of the fields set, the group of this message is cleared and replaced by the field of the other message, so that the oneof constraint is preserved.

This is equivalent to the Message::MergeFrom method in C++.

Specified by:

mergeFrom in interface Message.Builder

Overrides:

mergeFrom in class AbstractMessage.Builder<DynamicMessage.Builder>

build

public DynamicMessage build()

Description copied from interface: MessageLite.Builder

Constructs the message based on the state of the Builder. Subsequent changes to the Builder will not affect the returned message.

buildPartial

public DynamicMessage buildPartial()

Description copied from interface: MessageLite.Builder

Like MessageLite.Builder.build(), but does not throw an exception if the message is missing required fields. Instead, a partial message is returned. Subsequent changes to the Builder will not affect the returned message.

clone

public DynamicMessage.Builder 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 AbstractMessage.Builder<DynamicMessage.Builder>

See Also:

Object.clone()

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()

getDescriptorForType

public Descriptors.Descriptor getDescriptorForType()

Description copied from interface: Message.Builder

Get the message's type's descriptor. See MessageOrBuilder.getDescriptorForType().

getDefaultInstanceForType

public DynamicMessage getDefaultInstanceForType()

Description copied from interface: MessageLiteOrBuilder

Get an instance of the type with no fields set. Because no fields are set, all getters for singular fields will return default values and repeated fields will appear empty. This may or may not be a singleton. This differs from the getDefaultInstance() method of generated message classes in that this method is an abstract method of the MessageLite interface whereas getDefaultInstance() is a static method of a specific class. They return the same thing.

getAllFields

public Map<Descriptors.FieldDescriptor,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.

newBuilderForField

public DynamicMessage.Builder newBuilderForField(Descriptors.FieldDescriptor field)

Description copied from interface: Message.Builder

Create a builder for messages of the appropriate type for the given field. The builder is NOT nested in the current builder. However, messages built with the builder can then be passed to the Message.Builder.setField(Descriptors.FieldDescriptor, Object), Message.Builder.setRepeatedField(Descriptors.FieldDescriptor, int, Object), or Message.Builder.addRepeatedField(Descriptors.FieldDescriptor, Object) method of the current builder.

To obtain a builder nested in the current builder, use Message.Builder.getFieldBuilder(Descriptors.FieldDescriptor) instead.

hasOneof

public boolean hasOneof(Descriptors.OneofDescriptor oneof)

Description copied from class: AbstractMessage.Builder

TODO(jieluo): Clear it when all subclasses have implemented this method.

Specified by:

hasOneof in interface MessageOrBuilder

Overrides:

hasOneof in class AbstractMessage.Builder<DynamicMessage.Builder>

getOneofFieldDescriptor

public Descriptors.FieldDescriptor getOneofFieldDescriptor(Descriptors.OneofDescriptor oneof)

Description copied from class: AbstractMessage.Builder

TODO(jieluo): Clear it when all subclasses have implemented this method.

Specified by:

getOneofFieldDescriptor in interface MessageOrBuilder

Overrides:

getOneofFieldDescriptor in class AbstractMessage.Builder<DynamicMessage.Builder>

clearOneof

public DynamicMessage.Builder clearOneof(Descriptors.OneofDescriptor oneof)

Description copied from class: AbstractMessage.Builder

TODO(jieluo): Clear it when all subclasses have implemented this method.

Specified by:

clearOneof in interface Message.Builder

Overrides:

clearOneof in class AbstractMessage.Builder<DynamicMessage.Builder>

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.

getField

public 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.

setField

public DynamicMessage.Builder setField(Descriptors.FieldDescriptor field,
                                       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, that is, the same type that MessageOrBuilder.getField(Descriptors.FieldDescriptor) returns.

clearField

public DynamicMessage.Builder 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.

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.

getRepeatedField

public 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.

setRepeatedField

public DynamicMessage.Builder setRepeatedField(Descriptors.FieldDescriptor field,
                                               int index,
                                               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; that is, the same type that MessageOrBuilder.getRepeatedField(Descriptors.FieldDescriptor,int) returns.

addRepeatedField

public DynamicMessage.Builder addRepeatedField(Descriptors.FieldDescriptor field,
                                               Object value)

Description copied from interface: Message.Builder

Like setRepeatedField, but appends the value as a new element.

getUnknownFields

public UnknownFieldSet getUnknownFields()

Description copied from interface: MessageOrBuilder

Get the UnknownFieldSet for this message.

setUnknownFields

public DynamicMessage.Builder setUnknownFields(UnknownFieldSet unknownFields)

Description copied from interface: Message.Builder

Set the UnknownFieldSet for this message.

mergeUnknownFields

public DynamicMessage.Builder mergeUnknownFields(UnknownFieldSet unknownFields)

Description copied from interface: Message.Builder

Merge some unknown fields into the UnknownFieldSet for this message.

Specified by:

mergeUnknownFields in interface Message.Builder

Overrides:

mergeUnknownFields in class AbstractMessage.Builder<DynamicMessage.Builder>

getFieldBuilder

public Message.Builder getFieldBuilder(Descriptors.FieldDescriptor field)

Description copied from interface: Message.Builder

Get a nested builder instance for the given field.

Normally, we hold a reference to the immutable message object for the message type field. Some implementations (the generated message builders) can also hold a reference to the builder object (a nested builder) for the field.

If the field is already backed up by a nested builder, the nested builder is returned. Otherwise, a new field builder is created and returned. The original message field (if one exists) is merged into the field builder, which is then nested into its parent builder.

Specified by:

getFieldBuilder in interface Message.Builder

Overrides:

getFieldBuilder in class AbstractMessage.Builder<DynamicMessage.Builder>

getRepeatedFieldBuilder

public Message.Builder getRepeatedFieldBuilder(Descriptors.FieldDescriptor field,
                                               int index)

Description copied from interface: Message.Builder

Get a nested builder instance for the given repeated field instance.

Normally, we hold a reference to the immutable message object for the message type field. Some implementations (the generated message builders) can also hold a reference to the builder object (a nested builder) for the field.

If the field is already backed up by a nested builder, the nested builder is returned. Otherwise, a new field builder is created and returned. The original message field (if one exists) is merged into the field builder, which is then nested into its parent builder.

Specified by:

getRepeatedFieldBuilder in interface Message.Builder

Overrides:

getRepeatedFieldBuilder in class AbstractMessage.Builder<DynamicMessage.Builder>