This represents all messages which occur before ControlMessage type messages. Those
include encryption, admin (e.g.: cancellation) and start-up messages.
Factory method to create the bootstrap message from their designated format. Note this is
backwards from control messages where identifier is first and length second.
Parses the parameter keys from the given raw parameter string and returns these in the received
order. This can be used to detect the client that is connecting to PGAdapter.
Parses parameters specific to bootstrap messages. Those generally (unlike control parameters)
exclude metadata including length and are simple null (0) delimited.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["# Class BootstrapMessage (0.27.1)\n\nVersion latestkeyboard_arrow_down\n\n- [0.27.1 (latest)](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.27.0](/java/docs/reference/pgadapter/0.27.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.26.0](/java/docs/reference/pgadapter/0.26.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.25.0](/java/docs/reference/pgadapter/0.25.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.24.0](/java/docs/reference/pgadapter/0.24.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.23.1](/java/docs/reference/pgadapter/0.23.1/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.22.1](/java/docs/reference/pgadapter/0.22.1/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.21.0](/java/docs/reference/pgadapter/0.21.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.20.0](/java/docs/reference/pgadapter/0.20.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.19.1](/java/docs/reference/pgadapter/0.19.1/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.18.4](/java/docs/reference/pgadapter/0.18.4/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.17.0](/java/docs/reference/pgadapter/0.17.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.16.0](/java/docs/reference/pgadapter/0.16.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.15.0](/java/docs/reference/pgadapter/0.15.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.14.1](/java/docs/reference/pgadapter/0.14.1/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.9.0](/java/docs/reference/pgadapter/0.9.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.8.0](/java/docs/reference/pgadapter/0.8.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.7.0](/java/docs/reference/pgadapter/0.7.0/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.6.1](/java/docs/reference/pgadapter/0.6.1/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage)\n- [0.5.1](/java/docs/reference/pgadapter/0.5.1/com.google.cloud.spanner.pgadapter.wireprotocol.BootstrapMessage) \n\n public abstract class BootstrapMessage extends WireMessage\n\nThis represents all messages which occur before [ControlMessage](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.ControlMessage) type messages. Those\ninclude encryption, admin (e.g.: cancellation) and start-up messages. \n\nInheritance\n-----------\n\n[java.lang.Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \\\u003e [WireMessage](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage) \\\u003e BootstrapMessage \n\nInherited Members\n-----------------\n\n[WireMessage.getHeaderLength()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_getHeaderLength__) \n[WireMessage.getIdentifier()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_getIdentifier__) \n[WireMessage.getMessageName()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_getMessageName__) \n[WireMessage.getParameters(DataInputStream)](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_getParameters_java_io_DataInputStream_) \n[WireMessage.getPayloadString()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_getPayloadString__) \n[WireMessage.nextHandler()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_nextHandler__) \n[WireMessage.read(int)](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_read_int_) \n[WireMessage.readAll()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_readAll__) \n[WireMessage.readString()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_readString__) \n[WireMessage.send()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_send__) \n[WireMessage.sendPayload()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_sendPayload__) \n[WireMessage.toString()](/java/docs/reference/pgadapter/latest/com.google.cloud.spanner.pgadapter.wireprotocol.WireMessage#com_google_cloud_spanner_pgadapter_wireprotocol_WireMessage_toString__) \n[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) \n[Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) \n[Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) \n[Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) \n[Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) \n[Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) \n[Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) \n[Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) \n[Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) \n[Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)\n\nStatic Methods\n--------------\n\n### create(ConnectionHandler connection)\n\n public static BootstrapMessage create(ConnectionHandler connection)\n\nFactory method to create the bootstrap message from their designated format. Note this is\nbackwards from control messages where identifier is first and length second.\n\n### sendStartupMessage(DataOutputStream output, int connectionId, int secret, SessionState sessionState, Iterable\\\u003cNoticeResponse\\\u003e startupNotices)\n\n public static void sendStartupMessage(DataOutputStream output, int connectionId, int secret, SessionState sessionState, Iterable\u003cNoticeResponse\u003e startupNotices)\n\nExpected PG start-up reply, including Auth approval, Key Data connection-specific info,\nPGAdapter specific parameters, and a ready signal.\n\nConstructors\n------------\n\n### BootstrapMessage(ConnectionHandler connection, int length)\n\n public BootstrapMessage(ConnectionHandler connection, int length)\n\nMethods\n-------\n\n### parseParameterKeys(String rawParameters)\n\n protected List\u003cString\u003e parseParameterKeys(String rawParameters)\n\nParses the parameter keys from the given raw parameter string and returns these in the received\norder. This can be used to detect the client that is connecting to PGAdapter.\n\n### parseParameters(String rawParameters)\n\n protected Map\u003cString,String\u003e parseParameters(String rawParameters)\n\nParses parameters specific to bootstrap messages. Those generally (unlike control parameters)\nexclude metadata including length and are simple null (0) delimited."]]
