# Class MailServicePb.MailHeader.Builder (5.0.3)

    public static final class MailServicePb.MailHeader.Builder extends GeneratedMessage.Builder<MailServicePb.MailHeader.Builder> implements MailServicePb.MailHeaderOrBuilder

## Inheritance

[java.lang.Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \> com.google.protobuf.AbstractMessageLite.Builder \> com.google.protobuf.AbstractMessage.Builder \> com.google.protobuf.GeneratedMessage.Builder \> MailServicePb.MailHeader.Builder

## Implements

[MailServicePb.MailHeaderOrBuilder](https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeaderOrBuilder)

## Inherited Members

com.google.protobuf.AbstractMessage.Builder.findInitializationErrors() com.google.protobuf.AbstractMessage.Builder.getInitializationErrorString() com.google.protobuf.AbstractMessage.Builder.internalMergeFrom(com.google.protobuf.AbstractMessageLite) com.google.protobuf.AbstractMessage.Builder.mergeFrom(byte\[\]) com.google.protobuf.AbstractMessage.Builder.mergeFrom(byte\[\],com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.AbstractMessage.Builder.mergeFrom(byte\[\],int,int) com.google.protobuf.AbstractMessage.Builder.mergeFrom(byte\[\],int,int,com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.ByteString) com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.ByteString,com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.CodedInputStream) com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.CodedInputStream,com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.Message) com.google.protobuf.AbstractMessage.Builder.mergeFrom(java.io.InputStream) com.google.protobuf.AbstractMessage.Builder.mergeFrom(java.io.InputStream,com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.AbstractMessage.Builder.newUninitializedMessageException(com.google.protobuf.Message) com.google.protobuf.AbstractMessage.Builder.toString() com.google.protobuf.AbstractMessageLite.Builder.\<T\>addAll(java.lang.Iterable\<T\>,java.util.Collection\<? super T\>) com.google.protobuf.AbstractMessageLite.Builder.\<T\>addAll(java.lang.Iterable\<T\>,java.util.List\<? super T\>) com.google.protobuf.AbstractMessageLite.Builder.internalMergeFrom(MessageType) com.google.protobuf.AbstractMessageLite.Builder.mergeDelimitedFrom(java.io.InputStream) com.google.protobuf.AbstractMessageLite.Builder.mergeDelimitedFrom(java.io.InputStream,com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.AbstractMessageLite.Builder.mergeFrom(com.google.protobuf.MessageLite) com.google.protobuf.AbstractMessageLite.Builder.newUninitializedMessageException(com.google.protobuf.MessageLite) com.google.protobuf.GeneratedMessage.Builder.addRepeatedField(com.google.protobuf.Descriptors.FieldDescriptor,java.lang.Object) com.google.protobuf.GeneratedMessage.Builder.clear() com.google.protobuf.GeneratedMessage.Builder.clearField(com.google.protobuf.Descriptors.FieldDescriptor) com.google.protobuf.GeneratedMessage.Builder.clearOneof(com.google.protobuf.Descriptors.OneofDescriptor) com.google.protobuf.GeneratedMessage.Builder.clone() com.google.protobuf.GeneratedMessage.Builder.getAllFields() com.google.protobuf.GeneratedMessage.Builder.getDescriptorForType() com.google.protobuf.GeneratedMessage.Builder.getField(com.google.protobuf.Descriptors.FieldDescriptor) com.google.protobuf.GeneratedMessage.Builder.getFieldBuilder(com.google.protobuf.Descriptors.FieldDescriptor) com.google.protobuf.GeneratedMessage.Builder.getOneofFieldDescriptor(com.google.protobuf.Descriptors.OneofDescriptor) com.google.protobuf.GeneratedMessage.Builder.getParentForChildren() com.google.protobuf.GeneratedMessage.Builder.getRepeatedField(com.google.protobuf.Descriptors.FieldDescriptor,int) com.google.protobuf.GeneratedMessage.Builder.getRepeatedFieldBuilder(com.google.protobuf.Descriptors.FieldDescriptor,int) com.google.protobuf.GeneratedMessage.Builder.getRepeatedFieldCount(com.google.protobuf.Descriptors.FieldDescriptor) com.google.protobuf.GeneratedMessage.Builder.getUnknownFieldSetBuilder() com.google.protobuf.GeneratedMessage.Builder.getUnknownFields() com.google.protobuf.GeneratedMessage.Builder.hasField(com.google.protobuf.Descriptors.FieldDescriptor) com.google.protobuf.GeneratedMessage.Builder.hasOneof(com.google.protobuf.Descriptors.OneofDescriptor) com.google.protobuf.GeneratedMessage.Builder.internalGetFieldAccessorTable() com.google.protobuf.GeneratedMessage.Builder.internalGetMapField(int) com.google.protobuf.GeneratedMessage.Builder.internalGetMapFieldReflection(int) com.google.protobuf.GeneratedMessage.Builder.internalGetMutableMapField(int) com.google.protobuf.GeneratedMessage.Builder.internalGetMutableMapFieldReflection(int) com.google.protobuf.GeneratedMessage.Builder.isClean() com.google.protobuf.GeneratedMessage.Builder.isInitialized() com.google.protobuf.GeneratedMessage.Builder.markClean() com.google.protobuf.GeneratedMessage.Builder.mergeUnknownFields(com.google.protobuf.UnknownFieldSet) com.google.protobuf.GeneratedMessage.Builder.mergeUnknownLengthDelimitedField(int,com.google.protobuf.ByteString) com.google.protobuf.GeneratedMessage.Builder.mergeUnknownVarintField(int,int) com.google.protobuf.GeneratedMessage.Builder.newBuilderForField(com.google.protobuf.Descriptors.FieldDescriptor) com.google.protobuf.GeneratedMessage.Builder.onBuilt() com.google.protobuf.GeneratedMessage.Builder.onChanged() com.google.protobuf.GeneratedMessage.Builder.parseUnknownField(com.google.protobuf.CodedInputStream,com.google.protobuf.ExtensionRegistryLite,int) com.google.protobuf.GeneratedMessage.Builder.setField(com.google.protobuf.Descriptors.FieldDescriptor,java.lang.Object) com.google.protobuf.GeneratedMessage.Builder.setRepeatedField(com.google.protobuf.Descriptors.FieldDescriptor,int,java.lang.Object) com.google.protobuf.GeneratedMessage.Builder.setUnknownFieldSetBuilder(com.google.protobuf.UnknownFieldSet.Builder) com.google.protobuf.GeneratedMessage.Builder.setUnknownFields(com.google.protobuf.UnknownFieldSet) com.google.protobuf.GeneratedMessage.Builder.setUnknownFieldsProto3(com.google.protobuf.UnknownFieldSet) [Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) [Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) [Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) [Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) [Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) [Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) [Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) [Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) [Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)

## Static Methods

### getDescriptor()

    public static final Descriptors.Descriptor getDescriptor()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `com.google.protobuf.Descriptors.Descriptor` |   |

## Methods

### build()

    public MailServicePb.MailHeader build()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader` |   |

### buildPartial()

    public MailServicePb.MailHeader buildPartial()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader` |   |

### clear()

    public MailServicePb.MailHeader.Builder clear()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

**Overrides** com.google.protobuf.GeneratedMessage.Builder.clear()

### clearName()

    public MailServicePb.MailHeader.Builder clearName()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

### clearValue()

    public MailServicePb.MailHeader.Builder clearValue()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

### getDefaultInstanceForType()

    public MailServicePb.MailHeader getDefaultInstanceForType()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader` |   |

### getDescriptorForType()

    public Descriptors.Descriptor getDescriptorForType()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `com.google.protobuf.Descriptors.Descriptor` |   |

**Overrides** com.google.protobuf.GeneratedMessage.Builder.getDescriptorForType()

### getName()

    public String getName()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |   |

### getNameBytes()

    public ByteString getNameBytes()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `com.google.protobuf.ByteString` |   |

### getValue()

    public String getValue()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |   |

### getValueBytes()

    public ByteString getValueBytes()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `com.google.protobuf.ByteString` |   |

### hasName()

    public boolean hasName()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### hasValue()

    public boolean hasValue()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### internalGetFieldAccessorTable()

    protected GeneratedMessage.FieldAccessorTable internalGetFieldAccessorTable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `com.google.protobuf.GeneratedMessage.FieldAccessorTable` |   |

**Overrides** com.google.protobuf.GeneratedMessage.Builder.internalGetFieldAccessorTable()

### isInitialized()

    public final boolean isInitialized()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** com.google.protobuf.GeneratedMessage.Builder.isInitialized()

### mergeFrom(MailServicePb.MailHeader arg0)

    public MailServicePb.MailHeader.Builder mergeFrom(MailServicePb.MailHeader arg0)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

### mergeFrom(CodedInputStream arg0, ExtensionRegistryLite arg1)

    public MailServicePb.MailHeader.Builder mergeFrom(CodedInputStream arg0, ExtensionRegistryLite arg1)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `com.google.protobuf.CodedInputStream` |
| `arg1` | `com.google.protobuf.ExtensionRegistryLite` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

**Overrides** com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.CodedInputStream,com.google.protobuf.ExtensionRegistryLite)

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### mergeFrom(Message arg0)

    public MailServicePb.MailHeader.Builder mergeFrom(Message arg0)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `com.google.protobuf.Message` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

**Overrides** com.google.protobuf.AbstractMessage.Builder.mergeFrom(com.google.protobuf.Message)

### setName(String arg0)

    public MailServicePb.MailHeader.Builder setName(String arg0)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

### setNameBytes(ByteString arg0)

    public MailServicePb.MailHeader.Builder setNameBytes(ByteString arg0)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `com.google.protobuf.ByteString` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

### setValue(String arg0)

    public MailServicePb.MailHeader.Builder setValue(String arg0)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |

### setValueBytes(ByteString arg0)

    public MailServicePb.MailHeader.Builder setValueBytes(ByteString arg0)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `arg0` | `com.google.protobuf.ByteString` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/appengine/docs/standard/java-gen2/reference/services/bundled/latest/com.google.appengine.api.mail.MailServicePb.MailHeader.Builder` |   |