dimas-b commented on code in PR #1070:
URL: https://github.com/apache/polaris/pull/1070#discussion_r1974426871


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polaris-core/src/main/java/org/apache/polaris/core/persistence/IntegrationPersistence.java:
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@@ -0,0 +1,129 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.polaris.core.persistence;
+
+import jakarta.annotation.Nonnull;
+import jakarta.annotation.Nullable;
+import org.apache.polaris.core.PolarisCallContext;
+import org.apache.polaris.core.entity.PolarisBaseEntity;
+import org.apache.polaris.core.entity.PolarisPrincipalSecrets;
+import org.apache.polaris.core.storage.PolarisStorageConfigurationInfo;
+import org.apache.polaris.core.storage.PolarisStorageIntegration;
+
+/**
+ * Interface for the necessary "peripheral integration" objects that are 
logically attached to core
+ * persistence entities but which typically involve additional separate 
external integrations
+ * related to identity/auth, kms/secrets storage, etc.
+ *
+ * <p>Implementations should orchestrate any necessary multi-phase protocols 
such as leasing an
+ * external resource before committing a reference to the external resource in 
the Polaris
+ * persistence layer, etc.
+ */
+public interface IntegrationPersistence {
+  /**
+   * Allows to retrieve to the secrets of a principal given its unique client 
id
+   *
+   * @param callCtx call context
+   * @param clientId principal client id
+   * @return the secrets
+   */
+  @Nullable
+  PolarisPrincipalSecrets loadPrincipalSecrets(
+      @Nonnull PolarisCallContext callCtx, @Nonnull String clientId);
+
+  /**
+   * generate and store a client id and associated secrets for a newly created 
principal entity
+   *
+   * @param callCtx call context
+   * @param principalName name of the principal
+   * @param principalId principal id
+   */
+  @Nonnull
+  PolarisPrincipalSecrets generateNewPrincipalSecrets(

Review Comment:
   What do you mean by "persist a referential ID"?



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