https://developers.google.com/protocol-buffers/protobuf-java/: Core Protocol Buffers library. Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. 
// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: google/protobuf/source_context.proto

package com.google.protobuf;


`SourceContext` represents information about the source of a
protobuf element, like the file in which it is defined.

 Protobuf type google.protobuf.SourceContext 
/**
 * <pre>
 * `SourceContext` represents information about the source of a
 * protobuf element, like the file in which it is defined.
 * </pre>
 *
 * Protobuf type {@code google.protobuf.SourceContext}
 */
public  final class SourceContext extends
    com.google.protobuf.GeneratedMessageV3 implements
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    SourceContextOrBuilder {
private static final long serialVersionUID = 0L;
  // Use SourceContext.newBuilder() to construct.
  private SourceContext(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
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  private SourceContext() {
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  }

  @java.lang.Override
  @SuppressWarnings({"unused"})
  protected java.lang.Object newInstance(
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  public static final com.google.protobuf.Descriptors.Descriptor
      getDescriptor() {
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  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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  public static final int FILE_NAME_FIELD_NUMBER = 1;
  private volatile java.lang.Object fileName_;
  
The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Returns:The fileName.
/**
   * <pre>
   * The path-qualified name of the .proto file that contained the associated
   * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
   * </pre>
   *
   * <code>string file_name = 1;</code>
   * @return The fileName.
   */
  public java.lang.String getFileName() {
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      fileName_ = s;
      return s;
    }
  }
  
The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Returns:The bytes for fileName.
/**
   * <pre>
   * The path-qualified name of the .proto file that contained the associated
   * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
   * </pre>
   *
   * <code>string file_name = 1;</code>
   * @return The bytes for fileName.
   */
  public com.google.protobuf.ByteString
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    java.lang.Object ref = fileName_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b = 
          com.google.protobuf.ByteString.copyFromUtf8(
              (java.lang.String) ref);
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      return b;
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  @java.lang.Override
  public final boolean isInitialized() {
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    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
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  @java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output)
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  @java.lang.Override
  public int getSerializedSize() {
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    size = 0;
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    return size;
  }

  @java.lang.Override
  public boolean equals(final java.lang.Object obj) {
    if (obj == this) {
     return true;
    }
    if (!(obj instanceof com.google.protobuf.SourceContext)) {
      return super.equals(obj);
    }
    com.google.protobuf.SourceContext other = (com.google.protobuf.SourceContext) obj;

    if (!getFileName()
        .equals(other.getFileName())) return false;
    if (!unknownFields.equals(other.unknownFields)) return false;
    return true;
  }

  @java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
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    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
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    hash = (53 * hash) + getFileName().hashCode();
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  }

  public static com.google.protobuf.SourceContext parseFrom(
      java.nio.ByteBuffer data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }
  public static com.google.protobuf.SourceContext parseFrom(
      java.nio.ByteBuffer data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }
  public static com.google.protobuf.SourceContext parseFrom(
      com.google.protobuf.ByteString data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }
  public static com.google.protobuf.SourceContext parseFrom(
      com.google.protobuf.ByteString data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }
  public static com.google.protobuf.SourceContext parseFrom(byte[] data)
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    return PARSER.parseFrom(data);
  }
  public static com.google.protobuf.SourceContext parseFrom(
      byte[] data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }
  public static com.google.protobuf.SourceContext parseFrom(java.io.InputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3
        .parseWithIOException(PARSER, input);
  }
  public static com.google.protobuf.SourceContext parseFrom(
      java.io.InputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3
        .parseWithIOException(PARSER, input, extensionRegistry);
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  public static com.google.protobuf.SourceContext parseDelimitedFrom(java.io.InputStream input)
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    return com.google.protobuf.GeneratedMessageV3
        .parseDelimitedWithIOException(PARSER, input);
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  public static com.google.protobuf.SourceContext parseDelimitedFrom(
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      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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    return com.google.protobuf.GeneratedMessageV3
        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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  public static com.google.protobuf.SourceContext parseFrom(
      com.google.protobuf.CodedInputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3
        .parseWithIOException(PARSER, input);
  }
  public static com.google.protobuf.SourceContext parseFrom(
      com.google.protobuf.CodedInputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3
        .parseWithIOException(PARSER, input, extensionRegistry);
  }

  @java.lang.Override
  public Builder newBuilderForType() { return newBuilder(); }
  public static Builder newBuilder() {
    return DEFAULT_INSTANCE.toBuilder();
  }
  public static Builder newBuilder(com.google.protobuf.SourceContext prototype) {
    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
  }
  @java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE
        ? new Builder() : new Builder().mergeFrom(this);
  }

  @java.lang.Override
  protected Builder newBuilderForType(
      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
    Builder builder = new Builder(parent);
    return builder;
  }
  
`SourceContext` represents information about the source of a
protobuf element, like the file in which it is defined.

 Protobuf type google.protobuf.SourceContext 
/**
   * <pre>
   * `SourceContext` represents information about the source of a
   * protobuf element, like the file in which it is defined.
   * </pre>
   *
   * Protobuf type {@code google.protobuf.SourceContext}
   */
  public static final class Builder extends
      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
      // @@protoc_insertion_point(builder_implements:google.protobuf.SourceContext)
      com.google.protobuf.SourceContextOrBuilder {
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return com.google.protobuf.SourceContextProto.internal_static_google_protobuf_SourceContext_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return com.google.protobuf.SourceContextProto.internal_static_google_protobuf_SourceContext_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
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    // Construct using com.google.protobuf.SourceContext.newBuilder()
    private Builder() {
      maybeForceBuilderInitialization();
    }

    private Builder(
        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      super(parent);
      maybeForceBuilderInitialization();
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    private void maybeForceBuilderInitialization() {
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      fileName_ = "";

      return this;
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    @java.lang.Override
    public com.google.protobuf.Descriptors.Descriptor
        getDescriptorForType() {
      return com.google.protobuf.SourceContextProto.internal_static_google_protobuf_SourceContext_descriptor;
    }

    @java.lang.Override
    public com.google.protobuf.SourceContext getDefaultInstanceForType() {
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    }

    @java.lang.Override
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    @java.lang.Override
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      result.fileName_ = fileName_;
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    @java.lang.Override
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    @java.lang.Override
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    @java.lang.Override
    public Builder clearField(
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    @java.lang.Override
    public Builder clearOneof(
        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
      return super.clearOneof(oneof);
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    @java.lang.Override
    public Builder setRepeatedField(
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    @java.lang.Override
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    @java.lang.Override
    public Builder mergeFrom(com.google.protobuf.Message other) {
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    public Builder mergeFrom(com.google.protobuf.SourceContext other) {
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    private java.lang.Object fileName_ = "";
    
The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Returns:The fileName.
/**
     * <pre>
     * The path-qualified name of the .proto file that contained the associated
     * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
     * </pre>
     *
     * <code>string file_name = 1;</code>
     * @return The fileName.
     */
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        java.lang.String s = bs.toStringUtf8();
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        return s;
      } else {
        return (java.lang.String) ref;
      }
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The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Returns:The bytes for fileName.
/**
     * <pre>
     * The path-qualified name of the .proto file that contained the associated
     * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
     * </pre>
     *
     * <code>string file_name = 1;</code>
     * @return The bytes for fileName.
     */
    public com.google.protobuf.ByteString
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      java.lang.Object ref = fileName_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        fileName_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    
The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Params:
  • value – The fileName to set.
Returns:This builder for chaining.
/**
     * <pre>
     * The path-qualified name of the .proto file that contained the associated
     * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
     * </pre>
     *
     * <code>string file_name = 1;</code>
     * @param value The fileName to set.
     * @return This builder for chaining.
     */
    public Builder setFileName(
        java.lang.String value) {
      if (value == null) {
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  }
  
      fileName_ = value;
      onChanged();
      return this;
    }
    
The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Returns:This builder for chaining.
/**
     * <pre>
     * The path-qualified name of the .proto file that contained the associated
     * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
     * </pre>
     *
     * <code>string file_name = 1;</code>
     * @return This builder for chaining.
     */
    public Builder clearFileName() {
      
      fileName_ = getDefaultInstance().getFileName();
      onChanged();
      return this;
    }
    
The path-qualified name of the .proto file that contained the associated
protobuf element.  For example: `"google/protobuf/source_context.proto"`.


string file_name = 1;

Params:
  • value – The bytes for fileName to set.
Returns:This builder for chaining.
/**
     * <pre>
     * The path-qualified name of the .proto file that contained the associated
     * protobuf element.  For example: `"google/protobuf/source_context.proto"`.
     * </pre>
     *
     * <code>string file_name = 1;</code>
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     * @return This builder for chaining.
     */
    public Builder setFileNameBytes(
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    // @@protoc_insertion_point(builder_scope:google.protobuf.SourceContext)
  }

  // @@protoc_insertion_point(class_scope:google.protobuf.SourceContext)
  private static final com.google.protobuf.SourceContext DEFAULT_INSTANCE;
  static {
    DEFAULT_INSTANCE = new com.google.protobuf.SourceContext();
  }

  public static com.google.protobuf.SourceContext getDefaultInstance() {
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  }

  private static final com.google.protobuf.Parser<SourceContext>
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    public SourceContext parsePartialFrom(
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  };

  public static com.google.protobuf.Parser<SourceContext> parser() {
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  }

  @java.lang.Override
  public com.google.protobuf.Parser<SourceContext> getParserForType() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.protobuf.SourceContext getDefaultInstanceForType() {
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}