Package com.google.cloud.eventarc.v1

Class Channel.Builder

  • All Implemented Interfaces:
    ChannelOrBuilder, com.google.protobuf.Message.Builder, com.google.protobuf.MessageLite.Builder, com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder, Cloneable
    Enclosing class:
    Channel
    public static final class Channel.Builder
extends com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>
implements ChannelOrBuilder
     A representation of the Channel resource.
 A Channel is a resource on which event providers publish their events.
 The published events are delivered through the transport associated with the
 channel. Note that a channel is associated with exactly one event provider.
    Protobuf type google.cloud.eventarc.v1.Channel

    • Method Detail

      • getDescriptor

        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor()

      • internalGetFieldAccessorTable

        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
        Specified by:
        internalGetFieldAccessorTable in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • clear

        public Channel.Builder clear()
        Specified by:
        clear in interface com.google.protobuf.Message.Builder
        Specified by:
        clear in interface com.google.protobuf.MessageLite.Builder
        Overrides:
        clear in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • getDescriptorForType

        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType()
        Specified by:
        getDescriptorForType in interface com.google.protobuf.Message.Builder
        Specified by:
        getDescriptorForType in interface com.google.protobuf.MessageOrBuilder
        Overrides:
        getDescriptorForType in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • getDefaultInstanceForType

        public Channel getDefaultInstanceForType()
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageLiteOrBuilder
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageOrBuilder

      • build

        public Channel build()
        Specified by:
        build in interface com.google.protobuf.Message.Builder
        Specified by:
        build in interface com.google.protobuf.MessageLite.Builder

      • buildPartial

        public Channel buildPartial()
        Specified by:
        buildPartial in interface com.google.protobuf.Message.Builder
        Specified by:
        buildPartial in interface com.google.protobuf.MessageLite.Builder

      • clone

        public Channel.Builder clone()
        Specified by:
        clone in interface com.google.protobuf.Message.Builder
        Specified by:
        clone in interface com.google.protobuf.MessageLite.Builder
        Overrides:
        clone in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • setField

        public Channel.Builder setField​(com.google.protobuf.Descriptors.FieldDescriptor field,
                                Object value)
        Specified by:
        setField in interface com.google.protobuf.Message.Builder
        Overrides:
        setField in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • clearField

        public Channel.Builder clearField​(com.google.protobuf.Descriptors.FieldDescriptor field)
        Specified by:
        clearField in interface com.google.protobuf.Message.Builder
        Overrides:
        clearField in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • clearOneof

        public Channel.Builder clearOneof​(com.google.protobuf.Descriptors.OneofDescriptor oneof)
        Specified by:
        clearOneof in interface com.google.protobuf.Message.Builder
        Overrides:
        clearOneof in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • setRepeatedField

        public Channel.Builder setRepeatedField​(com.google.protobuf.Descriptors.FieldDescriptor field,
                                        int index,
                                        Object value)
        Specified by:
        setRepeatedField in interface com.google.protobuf.Message.Builder
        Overrides:
        setRepeatedField in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • addRepeatedField

        public Channel.Builder addRepeatedField​(com.google.protobuf.Descriptors.FieldDescriptor field,
                                        Object value)
        Specified by:
        addRepeatedField in interface com.google.protobuf.Message.Builder
        Overrides:
        addRepeatedField in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • mergeFrom

        public Channel.Builder mergeFrom​(com.google.protobuf.Message other)
        Specified by:
        mergeFrom in interface com.google.protobuf.Message.Builder
        Overrides:
        mergeFrom in class com.google.protobuf.AbstractMessage.Builder<Channel.Builder>

      • isInitialized

        public final boolean isInitialized()
        Specified by:
        isInitialized in interface com.google.protobuf.MessageLiteOrBuilder
        Overrides:
        isInitialized in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • mergeFrom

        public Channel.Builder mergeFrom​(com.google.protobuf.CodedInputStream input,
                                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                          throws IOException
        Specified by:
        mergeFrom in interface com.google.protobuf.Message.Builder
        Specified by:
        mergeFrom in interface com.google.protobuf.MessageLite.Builder
        Overrides:
        mergeFrom in class com.google.protobuf.AbstractMessage.Builder<Channel.Builder>
        Throws:
        IOException

      • getName

        public String getName()
         Required. The resource name of the channel. Must be unique within the
 location on the project and must be in
 `projects/{project}/locations/{location}/channels/{channel_id}` format.
        string name = 1 [(.google.api.field_behavior) = REQUIRED];
        Specified by:
        getName in interface ChannelOrBuilder
        Returns:
        The name.

      • getNameBytes

        public com.google.protobuf.ByteString getNameBytes()
         Required. The resource name of the channel. Must be unique within the
 location on the project and must be in
 `projects/{project}/locations/{location}/channels/{channel_id}` format.
        string name = 1 [(.google.api.field_behavior) = REQUIRED];
        Specified by:
        getNameBytes in interface ChannelOrBuilder
        Returns:
        The bytes for name.

      • setName

        public Channel.Builder setName​(String value)
         Required. The resource name of the channel. Must be unique within the
 location on the project and must be in
 `projects/{project}/locations/{location}/channels/{channel_id}` format.
        string name = 1 [(.google.api.field_behavior) = REQUIRED];
        Parameters:
        value - The name to set.
        Returns:
        This builder for chaining.

      • clearName

        public Channel.Builder clearName()
         Required. The resource name of the channel. Must be unique within the
 location on the project and must be in
 `projects/{project}/locations/{location}/channels/{channel_id}` format.
        string name = 1 [(.google.api.field_behavior) = REQUIRED];
        Returns:
        This builder for chaining.

      • setNameBytes

        public Channel.Builder setNameBytes​(com.google.protobuf.ByteString value)
         Required. The resource name of the channel. Must be unique within the
 location on the project and must be in
 `projects/{project}/locations/{location}/channels/{channel_id}` format.
        string name = 1 [(.google.api.field_behavior) = REQUIRED];
        Parameters:
        value - The bytes for name to set.
        Returns:
        This builder for chaining.

      • getUid

        public String getUid()
         Output only. Server assigned unique identifier for the channel. The value
 is a UUID4 string and guaranteed to remain unchanged until the resource is
 deleted.
        string uid = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getUid in interface ChannelOrBuilder
        Returns:
        The uid.

      • getUidBytes

        public com.google.protobuf.ByteString getUidBytes()
         Output only. Server assigned unique identifier for the channel. The value
 is a UUID4 string and guaranteed to remain unchanged until the resource is
 deleted.
        string uid = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getUidBytes in interface ChannelOrBuilder
        Returns:
        The bytes for uid.

      • setUid

        public Channel.Builder setUid​(String value)
         Output only. Server assigned unique identifier for the channel. The value
 is a UUID4 string and guaranteed to remain unchanged until the resource is
 deleted.
        string uid = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The uid to set.
        Returns:
        This builder for chaining.

      • clearUid

        public Channel.Builder clearUid()
         Output only. Server assigned unique identifier for the channel. The value
 is a UUID4 string and guaranteed to remain unchanged until the resource is
 deleted.
        string uid = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Returns:
        This builder for chaining.

      • setUidBytes

        public Channel.Builder setUidBytes​(com.google.protobuf.ByteString value)
         Output only. Server assigned unique identifier for the channel. The value
 is a UUID4 string and guaranteed to remain unchanged until the resource is
 deleted.
        string uid = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The bytes for uid to set.
        Returns:
        This builder for chaining.

      • hasCreateTime

        public boolean hasCreateTime()
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        hasCreateTime in interface ChannelOrBuilder
        Returns:
        Whether the createTime field is set.

      • getCreateTime

        public com.google.protobuf.Timestamp getCreateTime()
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getCreateTime in interface ChannelOrBuilder
        Returns:
        The createTime.

      • setCreateTime

        public Channel.Builder setCreateTime​(com.google.protobuf.Timestamp value)
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • setCreateTime

        public Channel.Builder setCreateTime​(com.google.protobuf.Timestamp.Builder builderForValue)
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • mergeCreateTime

        public Channel.Builder mergeCreateTime​(com.google.protobuf.Timestamp value)
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • clearCreateTime

        public Channel.Builder clearCreateTime()
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • getCreateTimeBuilder

        public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder()
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • getCreateTimeOrBuilder

        public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder()
         Output only. The creation time.
        .google.protobuf.Timestamp create_time = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getCreateTimeOrBuilder in interface ChannelOrBuilder

      • hasUpdateTime

        public boolean hasUpdateTime()
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        hasUpdateTime in interface ChannelOrBuilder
        Returns:
        Whether the updateTime field is set.

      • getUpdateTime

        public com.google.protobuf.Timestamp getUpdateTime()
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getUpdateTime in interface ChannelOrBuilder
        Returns:
        The updateTime.

      • setUpdateTime

        public Channel.Builder setUpdateTime​(com.google.protobuf.Timestamp value)
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • setUpdateTime

        public Channel.Builder setUpdateTime​(com.google.protobuf.Timestamp.Builder builderForValue)
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • mergeUpdateTime

        public Channel.Builder mergeUpdateTime​(com.google.protobuf.Timestamp value)
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • clearUpdateTime

        public Channel.Builder clearUpdateTime()
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • getUpdateTimeBuilder

        public com.google.protobuf.Timestamp.Builder getUpdateTimeBuilder()
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];

      • getUpdateTimeOrBuilder

        public com.google.protobuf.TimestampOrBuilder getUpdateTimeOrBuilder()
         Output only. The last-modified time.
        .google.protobuf.Timestamp update_time = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getUpdateTimeOrBuilder in interface ChannelOrBuilder

      • getProvider

        public String getProvider()
         The name of the event provider (e.g. Eventarc SaaS partner) associated
 with the channel. This provider will be granted permissions to publish
 events to the channel. Format:
 `projects/{project}/locations/{location}/providers/{provider_id}`.
        string provider = 7;
        Specified by:
        getProvider in interface ChannelOrBuilder
        Returns:
        The provider.

      • getProviderBytes

        public com.google.protobuf.ByteString getProviderBytes()
         The name of the event provider (e.g. Eventarc SaaS partner) associated
 with the channel. This provider will be granted permissions to publish
 events to the channel. Format:
 `projects/{project}/locations/{location}/providers/{provider_id}`.
        string provider = 7;
        Specified by:
        getProviderBytes in interface ChannelOrBuilder
        Returns:
        The bytes for provider.

      • setProvider

        public Channel.Builder setProvider​(String value)
         The name of the event provider (e.g. Eventarc SaaS partner) associated
 with the channel. This provider will be granted permissions to publish
 events to the channel. Format:
 `projects/{project}/locations/{location}/providers/{provider_id}`.
        string provider = 7;
        Parameters:
        value - The provider to set.
        Returns:
        This builder for chaining.

      • clearProvider

        public Channel.Builder clearProvider()
         The name of the event provider (e.g. Eventarc SaaS partner) associated
 with the channel. This provider will be granted permissions to publish
 events to the channel. Format:
 `projects/{project}/locations/{location}/providers/{provider_id}`.
        string provider = 7;
        Returns:
        This builder for chaining.

      • setProviderBytes

        public Channel.Builder setProviderBytes​(com.google.protobuf.ByteString value)
         The name of the event provider (e.g. Eventarc SaaS partner) associated
 with the channel. This provider will be granted permissions to publish
 events to the channel. Format:
 `projects/{project}/locations/{location}/providers/{provider_id}`.
        string provider = 7;
        Parameters:
        value - The bytes for provider to set.
        Returns:
        This builder for chaining.

      • hasPubsubTopic

        public boolean hasPubsubTopic()
         Output only. The name of the Pub/Sub topic created and managed by
 Eventarc system as a transport for the event delivery. Format:
 `projects/{project}/topics/{topic_id}`.
        string pubsub_topic = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        hasPubsubTopic in interface ChannelOrBuilder
        Returns:
        Whether the pubsubTopic field is set.

      • getPubsubTopic

        public String getPubsubTopic()
         Output only. The name of the Pub/Sub topic created and managed by
 Eventarc system as a transport for the event delivery. Format:
 `projects/{project}/topics/{topic_id}`.
        string pubsub_topic = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getPubsubTopic in interface ChannelOrBuilder
        Returns:
        The pubsubTopic.

      • getPubsubTopicBytes

        public com.google.protobuf.ByteString getPubsubTopicBytes()
         Output only. The name of the Pub/Sub topic created and managed by
 Eventarc system as a transport for the event delivery. Format:
 `projects/{project}/topics/{topic_id}`.
        string pubsub_topic = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getPubsubTopicBytes in interface ChannelOrBuilder
        Returns:
        The bytes for pubsubTopic.

      • setPubsubTopic

        public Channel.Builder setPubsubTopic​(String value)
         Output only. The name of the Pub/Sub topic created and managed by
 Eventarc system as a transport for the event delivery. Format:
 `projects/{project}/topics/{topic_id}`.
        string pubsub_topic = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The pubsubTopic to set.
        Returns:
        This builder for chaining.

      • clearPubsubTopic

        public Channel.Builder clearPubsubTopic()
         Output only. The name of the Pub/Sub topic created and managed by
 Eventarc system as a transport for the event delivery. Format:
 `projects/{project}/topics/{topic_id}`.
        string pubsub_topic = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Returns:
        This builder for chaining.

      • setPubsubTopicBytes

        public Channel.Builder setPubsubTopicBytes​(com.google.protobuf.ByteString value)
         Output only. The name of the Pub/Sub topic created and managed by
 Eventarc system as a transport for the event delivery. Format:
 `projects/{project}/topics/{topic_id}`.
        string pubsub_topic = 8 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The bytes for pubsubTopic to set.
        Returns:
        This builder for chaining.

      • getStateValue

        public int getStateValue()
         Output only. The state of a Channel.
        .google.cloud.eventarc.v1.Channel.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getStateValue in interface ChannelOrBuilder
        Returns:
        The enum numeric value on the wire for state.

      • setStateValue

        public Channel.Builder setStateValue​(int value)
         Output only. The state of a Channel.
        .google.cloud.eventarc.v1.Channel.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The enum numeric value on the wire for state to set.
        Returns:
        This builder for chaining.

      • getState

        public Channel.State getState()
         Output only. The state of a Channel.
        .google.cloud.eventarc.v1.Channel.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getState in interface ChannelOrBuilder
        Returns:
        The state.

      • setState

        public Channel.Builder setState​(Channel.State value)
         Output only. The state of a Channel.
        .google.cloud.eventarc.v1.Channel.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The state to set.
        Returns:
        This builder for chaining.

      • clearState

        public Channel.Builder clearState()
         Output only. The state of a Channel.
        .google.cloud.eventarc.v1.Channel.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Returns:
        This builder for chaining.

      • getActivationToken

        public String getActivationToken()
         Output only. The activation token for the channel. The token must be used
 by the provider to register the channel for publishing.
        string activation_token = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getActivationToken in interface ChannelOrBuilder
        Returns:
        The activationToken.

      • getActivationTokenBytes

        public com.google.protobuf.ByteString getActivationTokenBytes()
         Output only. The activation token for the channel. The token must be used
 by the provider to register the channel for publishing.
        string activation_token = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Specified by:
        getActivationTokenBytes in interface ChannelOrBuilder
        Returns:
        The bytes for activationToken.

      • setActivationToken

        public Channel.Builder setActivationToken​(String value)
         Output only. The activation token for the channel. The token must be used
 by the provider to register the channel for publishing.
        string activation_token = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The activationToken to set.
        Returns:
        This builder for chaining.

      • clearActivationToken

        public Channel.Builder clearActivationToken()
         Output only. The activation token for the channel. The token must be used
 by the provider to register the channel for publishing.
        string activation_token = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Returns:
        This builder for chaining.

      • setActivationTokenBytes

        public Channel.Builder setActivationTokenBytes​(com.google.protobuf.ByteString value)
         Output only. The activation token for the channel. The token must be used
 by the provider to register the channel for publishing.
        string activation_token = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];
        Parameters:
        value - The bytes for activationToken to set.
        Returns:
        This builder for chaining.

      • getCryptoKeyName

        public String getCryptoKeyName()
         Optional. Resource name of a KMS crypto key (managed by the user) used to
 encrypt/decrypt their event data.

 It must match the pattern
 `projects/*/locations/*/keyRings/*/cryptoKeys/*`.
        string crypto_key_name = 11 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
        Specified by:
        getCryptoKeyName in interface ChannelOrBuilder
        Returns:
        The cryptoKeyName.

      • getCryptoKeyNameBytes

        public com.google.protobuf.ByteString getCryptoKeyNameBytes()
         Optional. Resource name of a KMS crypto key (managed by the user) used to
 encrypt/decrypt their event data.

 It must match the pattern
 `projects/*/locations/*/keyRings/*/cryptoKeys/*`.
        string crypto_key_name = 11 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
        Specified by:
        getCryptoKeyNameBytes in interface ChannelOrBuilder
        Returns:
        The bytes for cryptoKeyName.

      • setCryptoKeyName

        public Channel.Builder setCryptoKeyName​(String value)
         Optional. Resource name of a KMS crypto key (managed by the user) used to
 encrypt/decrypt their event data.

 It must match the pattern
 `projects/*/locations/*/keyRings/*/cryptoKeys/*`.
        string crypto_key_name = 11 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
        Parameters:
        value - The cryptoKeyName to set.
        Returns:
        This builder for chaining.

      • clearCryptoKeyName

        public Channel.Builder clearCryptoKeyName()
         Optional. Resource name of a KMS crypto key (managed by the user) used to
 encrypt/decrypt their event data.

 It must match the pattern
 `projects/*/locations/*/keyRings/*/cryptoKeys/*`.
        string crypto_key_name = 11 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
        Returns:
        This builder for chaining.

      • setCryptoKeyNameBytes

        public Channel.Builder setCryptoKeyNameBytes​(com.google.protobuf.ByteString value)
         Optional. Resource name of a KMS crypto key (managed by the user) used to
 encrypt/decrypt their event data.

 It must match the pattern
 `projects/*/locations/*/keyRings/*/cryptoKeys/*`.
        string crypto_key_name = 11 [(.google.api.field_behavior) = OPTIONAL, (.google.api.resource_reference) = { ... }
        Parameters:
        value - The bytes for cryptoKeyName to set.
        Returns:
        This builder for chaining.

      • setUnknownFields

        public final Channel.Builder setUnknownFields​(com.google.protobuf.UnknownFieldSet unknownFields)
        Specified by:
        setUnknownFields in interface com.google.protobuf.Message.Builder
        Overrides:
        setUnknownFields in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>

      • mergeUnknownFields

        public final Channel.Builder mergeUnknownFields​(com.google.protobuf.UnknownFieldSet unknownFields)
        Specified by:
        mergeUnknownFields in interface com.google.protobuf.Message.Builder
        Overrides:
        mergeUnknownFields in class com.google.protobuf.GeneratedMessageV3.Builder<Channel.Builder>