com.google.protobuf

Interface MessageLite.Builder

All Superinterfaces:

Cloneable, MessageLiteOrBuilder

All Known Implementing Classes:

AbstractMessageLite.Builder, GeneratedMessageLite.Builder, GeneratedMessageLite.ExtendableBuilder

Enclosing interface:

MessageLite

public static interface MessageLite.Builder
extends MessageLiteOrBuilder, Cloneable

Abstract interface implemented by Protocol Message builders.

Method Summary

Modifier and Type	Method and Description
MessageLite	build() Constructs the message based on the state of the Builder.
MessageLite	buildPartial() Like build(), but does not throw an exception if the message is missing required fields.
MessageLite.Builder	clear() Resets all fields to their default values.
MessageLite.Builder	clone() Clones the Builder.
boolean	mergeDelimitedFrom(InputStream input) Like mergeFrom(InputStream), but does not read until EOF.
boolean	mergeDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry) Like mergeDelimitedFrom(InputStream) but supporting extensions.
MessageLite.Builder	mergeFrom(byte[] data) Parse data as a message of this type and merge it with the message being built.
MessageLite.Builder	mergeFrom(byte[] data, ExtensionRegistryLite extensionRegistry) Parse data as a message of this type and merge it with the message being built.
MessageLite.Builder	mergeFrom(byte[] data, int off, int len) Parse data as a message of this type and merge it with the message being built.
MessageLite.Builder	mergeFrom(byte[] data, int off, int len, ExtensionRegistryLite extensionRegistry) Parse data as a message of this type and merge it with the message being built.
MessageLite.Builder	mergeFrom(ByteString data) Parse data as a message of this type and merge it with the message being built.
MessageLite.Builder	mergeFrom(ByteString data, ExtensionRegistryLite extensionRegistry) Parse data as a message of this type and merge it with the message being built.
MessageLite.Builder	mergeFrom(CodedInputStream input) Parses a message of this type from the input and merges it with this message.
MessageLite.Builder	mergeFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry) Like mergeFrom(CodedInputStream), but also parses extensions.
MessageLite.Builder	mergeFrom(InputStream input) Parse a message of this type from input and merge it with the message being built.
MessageLite.Builder	mergeFrom(InputStream input, ExtensionRegistryLite extensionRegistry) Parse a message of this type from input and merge it with the message being built.
MessageLite.Builder	mergeFrom(MessageLite other) Merge other into the message being built.

Methods inherited from interface com.google.protobuf.MessageLiteOrBuilder

getDefaultInstanceForType, isInitialized

Method Detail

build

MessageLite build()

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

Throws:

UninitializedMessageException - The message is missing one or more required fields (i.e. MessageLiteOrBuilder.isInitialized() returns false). Use buildPartial() to bypass this check.

buildPartial

MessageLite buildPartial()

Like 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.

clear

MessageLite.Builder clear()

Resets all fields to their default values.

clone

MessageLite.Builder clone()

Clones the Builder.

See Also:

Object.clone()

mergeDelimitedFrom

boolean mergeDelimitedFrom(InputStream input)
                    throws IOException

Like mergeFrom(InputStream), but does not read until EOF. Instead, the size of the message (encoded as a varint) is read first, then the message data. Use MessageLite.writeDelimitedTo(OutputStream) to write messages in this format.

Returns:

True if successful, or false if the stream is at EOF when the method starts. Any other error (including reaching EOF during parsing) will cause an exception to be thrown.

Throws:

IOException

mergeDelimitedFrom

boolean mergeDelimitedFrom(InputStream input,
                           ExtensionRegistryLite extensionRegistry)
                    throws IOException

Like mergeDelimitedFrom(InputStream) but supporting extensions.

Throws:

IOException

mergeFrom

MessageLite.Builder mergeFrom(byte[] data)
                       throws InvalidProtocolBufferException

Parse data as a message of this type and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream).

Returns:

this

Throws:

InvalidProtocolBufferException

mergeFrom

MessageLite.Builder mergeFrom(byte[] data,
                              ExtensionRegistryLite extensionRegistry)
                       throws InvalidProtocolBufferException

Parse data as a message of this type and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream,ExtensionRegistryLite).

Returns:

this

Throws:

InvalidProtocolBufferException

mergeFrom

MessageLite.Builder mergeFrom(byte[] data,
                              int off,
                              int len)
                       throws InvalidProtocolBufferException

Parse data as a message of this type and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream).

Returns:

this

Throws:

InvalidProtocolBufferException

mergeFrom

MessageLite.Builder mergeFrom(byte[] data,
                              int off,
                              int len,
                              ExtensionRegistryLite extensionRegistry)
                       throws InvalidProtocolBufferException

Parse data as a message of this type and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream,ExtensionRegistryLite).

Returns:

this

Throws:

InvalidProtocolBufferException

mergeFrom

MessageLite.Builder mergeFrom(ByteString data)
                       throws InvalidProtocolBufferException

Parse data as a message of this type and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream).

Returns:

this

Throws:

InvalidProtocolBufferException

mergeFrom

MessageLite.Builder mergeFrom(ByteString data,
                              ExtensionRegistryLite extensionRegistry)
                       throws InvalidProtocolBufferException

Parse data as a message of this type and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream,ExtensionRegistryLite).

Returns:

this

Throws:

InvalidProtocolBufferException

mergeFrom

MessageLite.Builder mergeFrom(CodedInputStream input)
                       throws IOException

Parses a message of this type from the input and merges it with this message.

Warning: This does not verify that all required fields are present in the input message. If you call build() without setting all required fields, it will throw an UninitializedMessageException, which is a RuntimeException and thus might not be caught. There are a few good ways to deal with this:

• Call MessageLiteOrBuilder.isInitialized() to verify that all required fields are set before building.
• Use buildPartial() to build, which ignores missing required fields.

Note: The caller should call CodedInputStream.checkLastTagWas(int) after calling this to verify that the last tag seen was the appropriate end-group tag, or zero for EOF.

Throws:

IOException

mergeFrom

MessageLite.Builder mergeFrom(CodedInputStream input,
                              ExtensionRegistryLite extensionRegistry)
                       throws IOException

Like mergeFrom(CodedInputStream), but also parses extensions. The extensions that you want to be able to parse must be registered in extensionRegistry. Extensions not in the registry will be treated as unknown fields.

Throws:

IOException

mergeFrom

MessageLite.Builder mergeFrom(InputStream input)
                       throws IOException

Parse a message of this type from input and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream). Note that this method always reads the entire input (unless it throws an exception). If you want it to stop earlier, you will need to wrap your input in some wrapper stream that limits reading. Or, use MessageLite.writeDelimitedTo(OutputStream) to write your message and mergeDelimitedFrom(InputStream) to read it.

Despite usually reading the entire input, this does not close the stream.

Returns:

this

Throws:

IOException

mergeFrom

MessageLite.Builder mergeFrom(InputStream input,
                              ExtensionRegistryLite extensionRegistry)
                       throws IOException

Parse a message of this type from input and merge it with the message being built. This is just a small wrapper around mergeFrom(CodedInputStream,ExtensionRegistryLite).

Returns:

this

Throws:

IOException

mergeFrom

MessageLite.Builder mergeFrom(MessageLite other)

Merge other into the message being built. other must have the exact same type as this (i.e. getClass().equals(getDefaultInstanceForType().getClass())). 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++.