Package com.google.protobuf
Class WireFormat
java.lang.Object
com.google.protobuf.WireFormat
This class is used internally by the Protocol Buffer library and generated message
implementations. It is public only because those generated messages do not reside in the
protobuf
package. Others should not use this class directly.
This class contains constants and helper functions useful for dealing with the Protocol Buffer wire format.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic enum
Lite equivalent toDescriptors.FieldDescriptor.Type
.static enum
Lite equivalent toDescriptors.FieldDescriptor.JavaType
.(package private) static enum
Validation level for handling incoming string field data which potentially contain non-UTF8 bytes. -
Field Summary
FieldsModifier and TypeFieldDescription(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
(package private) static final int
static final int
static final int
static final int
static final int
static final int
static final int
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic int
getTagFieldNumber
(int tag) Given a tag value, determines the field number (the upper 29 bits).static int
getTagWireType
(int tag) Given a tag value, determines the wire type (the lower 3 bits).(package private) static int
makeTag
(int fieldNumber, int wireType) Makes a tag value given a field number and wire type.(package private) static Object
readPrimitiveField
(CodedInputStream input, WireFormat.FieldType type, WireFormat.Utf8Validation utf8Validation) Read a field of any primitive type for immutable messages from a CodedInputStream.
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Field Details
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FIXED32_SIZE
static final int FIXED32_SIZE- See Also:
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FIXED64_SIZE
static final int FIXED64_SIZE- See Also:
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MAX_VARINT32_SIZE
static final int MAX_VARINT32_SIZE- See Also:
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MAX_VARINT64_SIZE
static final int MAX_VARINT64_SIZE- See Also:
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MAX_VARINT_SIZE
static final int MAX_VARINT_SIZE- See Also:
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WIRETYPE_VARINT
public static final int WIRETYPE_VARINT- See Also:
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WIRETYPE_FIXED64
public static final int WIRETYPE_FIXED64- See Also:
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WIRETYPE_LENGTH_DELIMITED
public static final int WIRETYPE_LENGTH_DELIMITED- See Also:
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WIRETYPE_START_GROUP
public static final int WIRETYPE_START_GROUP- See Also:
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WIRETYPE_END_GROUP
public static final int WIRETYPE_END_GROUP- See Also:
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WIRETYPE_FIXED32
public static final int WIRETYPE_FIXED32- See Also:
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TAG_TYPE_BITS
static final int TAG_TYPE_BITS- See Also:
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TAG_TYPE_MASK
static final int TAG_TYPE_MASK- See Also:
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MESSAGE_SET_ITEM
static final int MESSAGE_SET_ITEM- See Also:
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MESSAGE_SET_TYPE_ID
static final int MESSAGE_SET_TYPE_ID- See Also:
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MESSAGE_SET_MESSAGE
static final int MESSAGE_SET_MESSAGE- See Also:
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MESSAGE_SET_ITEM_TAG
static final int MESSAGE_SET_ITEM_TAG -
MESSAGE_SET_ITEM_END_TAG
static final int MESSAGE_SET_ITEM_END_TAG -
MESSAGE_SET_TYPE_ID_TAG
static final int MESSAGE_SET_TYPE_ID_TAG -
MESSAGE_SET_MESSAGE_TAG
static final int MESSAGE_SET_MESSAGE_TAG
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Constructor Details
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WireFormat
private WireFormat()
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Method Details
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getTagWireType
public static int getTagWireType(int tag) Given a tag value, determines the wire type (the lower 3 bits). -
getTagFieldNumber
public static int getTagFieldNumber(int tag) Given a tag value, determines the field number (the upper 29 bits). -
makeTag
static int makeTag(int fieldNumber, int wireType) Makes a tag value given a field number and wire type. -
readPrimitiveField
static Object readPrimitiveField(CodedInputStream input, WireFormat.FieldType type, WireFormat.Utf8Validation utf8Validation) throws IOException Read a field of any primitive type for immutable messages from a CodedInputStream. Enums, groups, and embedded messages are not handled by this method.- Parameters:
input
- The stream from which to read.type
- Declared type of the field.utf8Validation
- Different string UTF8 validation level for handling string fields.- Returns:
- An object representing the field's value, of the exact type which would be returned by
MessageOrBuilder.getField(Descriptors.FieldDescriptor)
for this field. - Throws:
IOException
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