Remove "Datastore" from comments when using both DBs (#1310)

* Change datastore references in comments to be more generic

* Update flows doc

core/src/main/java/google/registry/dns/writer/DnsWriter.java

@@ -31,12 +31,12 @@ package google.registry.dns.writer;
 public interface DnsWriter {
 
   /**
-   * Loads {@code domainName} from Datastore and publishes its NS/DS records to the DNS server.
+   * Loads {@code domainName} from the database and publishes its NS/DS records to the DNS server.
    * Replaces existing records for the exact name supplied with an NS record for each name server
    * and a DS record for each delegation signer stored in the registry for the supplied domain name.
    * If the domain is deleted or is in a "non-publish" state then any existing records are deleted.
    *
-   * This must NOT actually perform any action, instead it should stage the action so that it's
+   * <p>This must NOT actually perform any action, instead it should stage the action so that it's
    * performed when {@link #commit()} is called.
    *
    * @param domainName the fully qualified domain name, with no trailing dot
@@ -44,14 +44,14 @@ public interface DnsWriter {
   void publishDomain(String domainName);
 
   /**
-   * Loads {@code hostName} from Datastore and publishes its A/AAAA glue records to the DNS server,
-   * if it is used as an in-bailiwick nameserver. Orphaned glue records are prohibited. Replaces
-   * existing records for the exact name supplied, with an A or AAAA record (as appropriate) for
-   * each address stored in the registry, for the supplied host name. If the host is deleted then
-   * the existing records are deleted. Assumes that this method will only be called for in-bailiwick
-   * hosts. The registry does not have addresses for other hosts.
+   * Loads {@code hostName} from the database and publishes its A/AAAA glue records to the DNS
+   * server, if it is used as an in-bailiwick nameserver. Orphaned glue records are prohibited.
+   * Replaces existing records for the exact name supplied, with an A or AAAA record (as
+   * appropriate) for each address stored in the registry, for the supplied host name. If the host
+   * is deleted then the existing records are deleted. Assumes that this method will only be called
+   * for in-bailiwick hosts. The registry does not have addresses for other hosts.
    *
-   * This must NOT actually perform any action, instead it should stage the action so that it's
+   * <p>This must NOT actually perform any action, instead it should stage the action so that it's
    * performed when {@link #commit()} is called.
    *
    * @param hostName the fully qualified host name, with no trailing dot

core/src/main/java/google/registry/export/SyncGroupMembersAction.java

@@ -150,7 +150,8 @@ public final class SyncGroupMembersAction implements Runnable {
 
   /**
    * Parses the results from Google Groups for each registrar, setting the dirty flag to false in
-   * Datastore for the calls that succeeded and accumulating the errors for the calls that failed.
+   * the database for the calls that succeeded and accumulating the errors for the calls that
+   * failed.
    */
   private static List<Throwable> getErrorsAndUpdateFlagsForSuccesses(
       ImmutableMap<Registrar, Optional<Throwable>> results) {

core/src/main/java/google/registry/export/sheet/SyncRegistrarsSheet.java

@@ -47,7 +47,7 @@ import javax.inject.Inject;
 import org.joda.time.DateTime;
 
 /**
- * Class for synchronizing all {@link Registrar} Datastore objects to a Google Spreadsheet.
+ * Class for synchronizing all {@link Registrar} objects to a Google Spreadsheet.
  *
  * @see SyncRegistrarsSheetAction
  */

core/src/main/java/google/registry/flows/custom/DomainCreateFlowCustomLogic.java

@@ -56,10 +56,10 @@ public class DomainCreateFlowCustomLogic extends BaseFlowCustomLogic {
   /**
    * A hook that runs before new entities are persisted, allowing them to be changed.
    *
-   * <p>It returns the actual entity changes that should be persisted to Datastore. It is important
-   * to be careful when changing the flow behavior for existing entities, because the core logic
-   * across many different flows expects the existence of these entities and many of the fields on
-   * them.
+   * <p>It returns the actual entity changes that should be persisted to the database. It is
+   * important to be careful when changing the flow behavior for existing entities, because the core
+   * logic across many different flows expects the existence of these entities and many of the
+   * fields on them.
    */
   @SuppressWarnings("unused")
   public EntityChanges beforeSave(BeforeSaveParameters parameters) throws EppException {

core/src/main/java/google/registry/flows/custom/DomainDeleteFlowCustomLogic.java

@@ -54,10 +54,10 @@ public class DomainDeleteFlowCustomLogic extends BaseFlowCustomLogic {
   /**
    * A hook that runs before new entities are persisted, allowing them to be changed.
    *
-   * <p>It returns the actual entity changes that should be persisted to Datastore. It is important
-   * to be careful when changing the flow behavior for existing entities, because the core logic
-   * across many different flows expects the existence of these entities and many of the fields on
-   * them.
+   * <p>It returns the actual entity changes that should be persisted to the database. It is
+   * important to be careful when changing the flow behavior for existing entities, because the core
+   * logic across many different flows expects the existence of these entities and many of the
+   * fields on them.
    */
   @SuppressWarnings("unused")
   public EntityChanges beforeSave(BeforeSaveParameters parameters) throws EppException {

core/src/main/java/google/registry/flows/custom/DomainRenewFlowCustomLogic.java

@@ -55,10 +55,10 @@ public class DomainRenewFlowCustomLogic extends BaseFlowCustomLogic {
   /**
    * A hook that runs before new entities are persisted, allowing them to be changed.
    *
-   * <p>It returns the actual entity changes that should be persisted to Datastore. It is important
-   * to be careful when changing the flow behavior for existing entities, because the core logic
-   * across many different flows expects the existence of these entities and many of the fields on
-   * them.
+   * <p>It returns the actual entity changes that should be persisted to the database. It is
+   * important to be careful when changing the flow behavior for existing entities, because the core
+   * logic across many different flows expects the existence of these entities and many of the
+   * fields on them.
    */
   @SuppressWarnings("unused")
   public EntityChanges beforeSave(BeforeSaveParameters parameters) throws EppException {

core/src/main/java/google/registry/flows/custom/DomainUpdateFlowCustomLogic.java

@@ -51,10 +51,10 @@ public class DomainUpdateFlowCustomLogic extends BaseFlowCustomLogic {
   /**
    * A hook that runs before new entities are persisted, allowing them to be changed.
    *
-   * <p>It returns the actual entity changes that should be persisted to Datastore. It is important
-   * to be careful when changing the flow behavior for existing entities, because the core logic
-   * across many different flows expects the existence of these entities and many of the fields on
-   * them.
+   * <p>It returns the actual entity changes that should be persisted to the database. It is
+   * important to be careful when changing the flow behavior for existing entities, because the core
+   * logic across many different flows expects the existence of these entities and many of the
+   * fields on them.
    */
   @SuppressWarnings("unused")
   public EntityChanges beforeSave(BeforeSaveParameters parameters) throws EppException {

core/src/main/java/google/registry/flows/custom/EntityChanges.java

@@ -19,7 +19,7 @@ import com.google.common.collect.ImmutableSet;
 import google.registry.model.ImmutableObject;
 import google.registry.persistence.VKey;
 
-/** A wrapper class that encapsulates Datastore entities to both save and delete. */
+/** A wrapper class that encapsulates database entities to both save and delete. */
 @AutoValue
 public abstract class EntityChanges {
 

core/src/main/java/google/registry/flows/domain/token/AllocationTokenFlowUtils.java

@@ -149,7 +149,7 @@ public class AllocationTokenFlowUtils {
   private AllocationToken loadToken(String token) throws EppException {
     if (Strings.isNullOrEmpty(token)) {
       // We load the token directly from the input XML. If it's null or empty we should throw
-      // an InvalidAllocationTokenException before the Datastore load attempt fails.
+      // an InvalidAllocationTokenException before the database load attempt fails.
       // See https://tools.ietf.org/html/draft-ietf-regext-allocation-token-04#section-2.1
       throw new InvalidAllocationTokenException();
     }

core/src/main/java/google/registry/flows/poll/PollRequestFlow.java

@@ -39,11 +39,11 @@ import org.joda.time.DateTime;
 /**
  * An EPP flow for requesting {@link PollMessage}s.
  *
- * <p>This flow uses an eventually consistent Datastore query to return the oldest poll message for
- * the registrar, as well as the total number of pending messages. Note that poll messages whose
- * event time is in the future (i.e. they are speculative and could still be changed or rescinded)
- * are ignored. The externally visible id for the poll message that the registrar sees is generated
- * by {@link PollMessageExternalKeyConverter}.
+ * <p>This flow uses an eventually consistent query to return the oldest poll message for the
+ * registrar, as well as the total number of pending messages. Note that poll messages whose event
+ * time is in the future (i.e. they are speculative and could still be changed or rescinded) are
+ * ignored. The externally visible id for the poll message that the registrar sees is generated by
+ * {@link PollMessageExternalKeyConverter}.
  *
  * @error {@link PollRequestFlow.UnexpectedMessageIdException}
  */