Creating a Custom Naming Strategy
To create a custom naming strategy, you need to extend one of the existing naming strategies provided by Spring, such as the CamelCaseToUnderscoresNamingStrategy. In your custom naming strategy, you can override the toPhysicalSchemaName() method to dynamically set the schema name based on your requirements.
Here’s an example of a custom naming strategy that sets the schema name based on an environment variable:
Java
// Java Program for Creating // Custom Naming Strategy package com.w3wiki; // Driver Class public class DynamicSchemaNamingStrategy extends CamelCaseToUnderscoresNamingStrategy { // Method for Creating // Custom Naming Strategy @Override protected String toPhysicalSchemaName(String identifier) { if (identifier.endsWith("$")) { String schemaName = System.getenv("SCHEMA_NAME"); if (schemaName == null) { throw new IllegalArgumentException("Environment variable 'SCHEMA_NAME' is not set"); } return identifier.substring(0, identifier.length() - 1) + "." + schemaName; } else { return identifier; } } } |
How to Set the Schema Name Dynamically in Spring JPA?
Spring JPA provides a convenient way to save Java objects to relational databases. However, it typically assumes that you have a single schema for your database. If you need to work with multiple schemas, you can use a custom naming strategy to set the schema name dynamically.
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