Dynamic Indexing #693

bsbodden · 2025-11-27T15:24:30Z

Summary

This PR introduces a comprehensive Dynamic Indexing feature for Redis OM Spring, enabling runtime index configuration through SpEL expressions, multi-tenant support, ephemeral indexes, and index
migration strategies. This provides flexibility for applications requiring dynamic index management based on runtime context.

Key Features

SpEL-Based Dynamic Index Names

Support for Spring Expression Language in @IndexingOptions annotation
Dynamic index names evaluated at runtime: indexName = "products_#{@tenantService.getCurrentTenant()}_idx"
Access to Spring beans, environment properties, and system properties
Automatic fallback to default values when expressions fail

Multi-Tenant Index Support

RedisIndexContext for thread-local tenant context management
TenantService pattern for managing current tenant state
Tenant-specific indexes that can be created/destroyed dynamically
Custom IndexResolver interface for advanced resolution logic

Ephemeral Indexes (EphemeralIndexService)

Create temporary indexes with automatic TTL-based cleanup
Extend or reduce TTL for existing ephemeral indexes
Useful for testing, analytics, and temporary data processing
Background cleanup of expired indexes

Index Migration (IndexMigrationService)

Blue-Green: Create new index, reindex data, switch alias atomically
Dual-Write: Write to both indexes during migration
In-Place: Update existing index (for minor changes)
Version tracking and alias management
MigrationResult and ReindexResult for operation status

Configurable Index Definitions (ConfigurableIndexDefinitionProvider)

Runtime registration and updates of index definitions
Bulk operations for managing multiple indexes
Export/import index configurations as JSON
Validation and statistics for index definitions

New Components

Component	Description
`@IndexingOptions`	Enhanced annotation with indexName, keyPrefix, creationMode
`RedisIndexContext`	Thread-local context for tenant/environment information
`IndexResolver`	Interface for custom index name/prefix resolution
`DefaultIndexResolver`	Default implementation using context and annotations
`EphemeralIndexService`	Service for TTL-based temporary indexes
`IndexMigrationService`	Service for zero-downtime index migrations
`ConfigurableIndexDefinitionProvider`	Runtime index configuration management
`MigrationStrategy`	Enum: BLUE_GREEN, DUAL_WRITE, IN_PLACE

Demo Application

New roms-multitenant demo showcasing:

Product and Order entities with dynamic index names
REST API for tenant switching and product management
Admin endpoints for index creation/verification
Interactive HTML UI demonstrating tenant isolation
Integration tests for dynamic index creation

Documentation

ephemeral-indexes.adoc: Guide for temporary indexes with TTL
index-migration.adoc: Guide for migration strategies
multi-tenant-support.adoc: Comprehensive multi-tenancy guide
index-creation.adoc: Updated with dynamic indexing examples
Complete Javadoc for all new public APIs

Important Notes

Note on keyPrefix: The keyPrefix attribute in @IndexingOptions affects the index configuration (what key prefix the index searches), not the actual key storage by Spring Data Redis. Documents are
stored using Spring Data Redis's static keyspace. For true data isolation, implement a custom KeyspaceResolver or tenant-aware ID strategy.

Implements Phase 1 of the Dynamic Indexing Feature Design, enabling Spring Expression Language (SpEL) support in @IndexingOptions for runtime-evaluated index names and key prefixes. Key features: - Support for SpEL expressions in indexName and keyPrefix attributes - Template expression syntax with #{...} markers - Access to environment properties, beans, and system properties - Automatic fallback to default naming when SpEL evaluation fails - Full backward compatibility maintained Use cases enabled: - Multi-tenant indexing with tenant-specific names and prefixes - Version-based index naming for blue-green deployments - Environment-aware index configuration - Dynamic index naming based on runtime context Breaking changes: None - existing code continues to work unchanged Testing: Comprehensive test suite with 100% coverage including: - Environment property resolution - Bean reference resolution - Method invocations in SpEL - Fallback behavior on evaluation failure - Multi-tenant scenarios - System properties access

- Add RedisIndexContext for thread-local tenant and environment context - Add IndexResolver interface for custom index name/prefix resolution strategies - Add DefaultIndexResolver with full SpEL evaluation support for context variables - Extend RediSearchIndexer with context-aware index operations - Support dynamic index naming and key prefixes based on runtime context - Enable multi-tenant Redis deployments with isolated indexes per tenant

…ime configuration - Add SpEL expression support for dynamic index naming and key prefixes - Implement RedisIndexContext for thread-local multi-tenant isolation - Create IndexResolver interface for customizable index resolution strategies - Add IndexMigrationService supporting Blue-Green, Dual-Write, and In-Place migration strategies - Implement ConfigurableIndexDefinitionProvider for runtime index configuration - Support context-aware index creation with tenant-specific indices - Add comprehensive validation, export/import, and statistics functionality - Maintain 100% backward compatibility with existing applications Components added: - RedisIndexContext: ThreadLocal context storage for tenant/environment data - DefaultIndexResolver: SpEL-aware resolver with application context integration - IndexMigrationService: Production-ready index migration with versioning - ConfigurableIndexDefinitionProvider: Runtime index management and Spring Data Redis bridge - Supporting classes: MigrationResult, ReindexResult, MigrationStrategy, ValidationResult Test coverage: 50+ tests including comprehensive integration tests demonstrating real Redis functionality with multi-tenant data isolation and dynamic configuration.

- Enhance README with dynamic indexing and multi-tenant support highlights - Add extensive dynamic indexing section to index-creation.adoc covering: - SpEL expressions for dynamic index naming - Environment-based and bean reference configurations - Multi-tenant index context and custom resolvers - Error handling, migration services, and best practices - Create dedicated multi-tenant-support.adoc page with: - RedisIndexContext and thread-local isolation - Custom index resolvers and tenant management service - Request-scoped tenant context and data access patterns - Monitoring, observability, and troubleshooting guides - Update navigation to include multi-tenant support documentation This documentation covers all aspects of the new dynamic indexing features including SpEL evaluation, multi-tenant isolation, index migration, and enterprise-ready patterns for production deployments.

…gement - Add real Redis alias operations to RediSearchIndexer (createAlias, removeAlias, updateAlias) - Integrate with existing SearchOperations interface methods - Support FT.ALIASADD, FT.ALIASUPDATE, FT.ALIASDEL Redis commands - Update IndexMigrationService to use real Redis aliasing for blue-green deployments - switchAlias() now creates actual Redis aliases instead of stub implementation - Enable zero-downtime index migrations with atomic alias switching - Add EphemeralIndexService for temporary indexes with TTL support - Automatic deletion after specified time-to-live expires - Support for extending TTL of existing ephemeral indexes - Proper cleanup on service shutdown via DisposableBean - Useful for batch processing and temporary data analysis - Add comprehensive integration tests using TestContainers - IndexMigrationServiceIntegrationTest: Validates blue-green migration with real aliasing - EphemeralIndexServiceIntegrationTest: Tests TTL expiration and extension - CustomIndexResolverIntegrationTest: Validates custom index resolver functionality All tests passing (1611 tests, 100% success rate)

Add missing Javadoc comments to fix build warnings in the indexing module. This includes documentation for constructors, builder classes, and all public methods in ConfigurableIndexDefinitionProvider, EphemeralIndexService, IndexMigrationService, MigrationResult, ReindexResult, and RediSearchIndexer. Also wrap SpEL expressions in {@code} blocks in RediSearchIndexer to prevent them from being parsed as Javadoc tags.

Add roms-multitenant demo showcasing dynamic index naming with SpEL expressions for multi-tenant scenarios. The demo includes: - Product and Order entities with tenant-aware index names - TenantService for thread-local tenant context management - REST controllers for tenant switching and product management - Admin endpoints for index creation and verification - Interactive HTML UI for demonstrating tenant isolation - Integration tests verifying dynamic index creation The demo demonstrates how to use @IndexingOptions with SpEL expressions like "products_#{@tenantService.getCurrentTenant()}_idx" to create tenant-specific search indexes at runtime.

Add new documentation pages for dynamic indexing features: - ephemeral-indexes.adoc: Covers EphemeralIndexService for creating temporary indexes with TTL, including use cases for testing, analytics, and temporary data processing - index-migration.adoc: Covers IndexMigrationService with Blue-Green, Dual-Write, and In-Place migration strategies for zero-downtime index updates Also update multi-tenant-support.adoc to clarify that keyPrefix in @IndexingOptions affects only index configuration, not actual key storage by Spring Data Redis. Add navigation entries and update outline.md.

Add new test entity fixtures: - ComplexSpelEntity: Entity with complex SpEL expressions for testing - SystemPropertyEntity: Entity using system property SpEL expressions Add BulkIndexOperationsIntegrationTest for testing batch index operations and update DynamicIndexingSpelTest and MultiTenantIndexIsolationIntegrationTest with improved test cases for dynamic index resolution.

@document

… isolation The keyPrefix attribute in @IndexingOptions now controls both the index configuration AND the actual key storage location for documents. This provides complete multi-tenant data isolation where each tenant's data is stored with different key prefixes. Changes: - Add resolveDynamicKeyspace() to RedisJSONKeyValueAdapter for @document entities - Add resolveDynamicKeyspace() to RedisEnhancedKeyValueAdapter for @RedisHash entities - Update put(), get(), delete() methods to use dynamic keyspace resolution - Update Product entity to use dynamic keyPrefix with SpEL expressions - Add comprehensive testTenantSearchIsolation() test for end-to-end verification - Update multi-tenant documentation to reflect complete isolation support Example usage: @IndexingOptions( indexName = "products_#{@tenantService.getCurrentTenant()}_idx", keyPrefix = "#{@tenantService.getCurrentTenant()}:products:" ) For tenant "acme": - Index: products_acme_idx - Keys stored as: acme:products:<id>

Copilot

Pull request overview

This PR introduces a comprehensive Dynamic Indexing feature for Redis OM Spring, enabling runtime index configuration through SpEL expressions, multi-tenant support, ephemeral indexes, and index migration strategies. The implementation spans across:

SpEL-Based Dynamic Index Names: Support for Spring Expression Language in @IndexingOptions annotation for runtime evaluation
Multi-Tenant Index Support: RedisIndexContext for thread-local tenant context management with custom IndexResolver interface
Ephemeral Indexes: EphemeralIndexService for creating temporary indexes with automatic TTL-based cleanup
Index Migration: IndexMigrationService supporting Blue-Green, Dual-Write, and In-Place migration strategies
Configurable Index Definitions: ConfigurableIndexDefinitionProvider for runtime index configuration management

Reviewed changes

Copilot reviewed 65 out of 65 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
redis-om-spring/src/main/java/com/redis/om/spring/indexing/RediSearchIndexer.java	Adds SpEL expression evaluation for dynamic index names and key prefixes, context-aware indexing methods, and bulk operations
redis-om-spring/src/main/java/com/redis/om/spring/indexing/RedisIndexContext.java	Thread-local context for tenant/environment information with builder pattern and execution utilities
redis-om-spring/src/main/java/com/redis/om/spring/indexing/IndexResolver.java	Strategy interface for custom index name/prefix resolution
redis-om-spring/src/main/java/com/redis/om/spring/indexing/DefaultIndexResolver.java	Default implementation supporting SpEL and context-based resolution
redis-om-spring/src/main/java/com/redis/om/spring/indexing/IndexMigrationService.java	Service for zero-downtime index migrations with multiple strategies
redis-om-spring/src/main/java/com/redis/om/spring/indexing/EphemeralIndexService.java	Service for TTL-based temporary indexes with automatic cleanup
redis-om-spring/src/main/java/com/redis/om/spring/indexing/ConfigurableIndexDefinitionProvider.java	Runtime index configuration management with validation and export/import
redis-om-spring/src/main/java/com/redis/om/spring/annotations/IndexingOptions.java	Enhanced annotation with keyPrefix and comprehensive SpEL documentation
redis-om-spring/src/main/java/com/redis/om/spring/RedisJSONKeyValueAdapter.java	Dynamic keyspace resolution integration
redis-om-spring/src/main/java/com/redis/om/spring/RedisEnhancedKeyValueAdapter.java	Dynamic keyspace resolution integration
tests/src/test/java/com/redis/om/spring/indexing/*	Comprehensive test suite covering all dynamic indexing features
tests/src/test/java/com/redis/om/spring/fixtures/document/model/*	Test entities demonstrating SpEL usage patterns
docs/content/modules/ROOT/pages/index-migration.adoc	Complete documentation for index migration strategies
demos/roms-multitenant/*	Demo application showcasing multi-tenant support

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redis-om-spring/src/main/java/com/redis/om/spring/indexing/IndexMigrationService.java

Copilot · 2025-11-27T15:34:12Z

tests/src/test/java/com/redis/om/spring/services/VersionService.java

+     * @return the next version string
+     */
+    public String getNextVersion(String incrementType) {
+        int major = Integer.parseInt(getMajorVersion());


Potential uncaught 'java.lang.NumberFormatException'.

tests/src/test/java/com/redis/om/spring/services/VersionService.java

Add try-catch blocks to handle potential NumberFormatException when parsing version numbers from index names and version strings. - IndexMigrationService.getCurrentIndexVersion(): wrap Integer.parseInt with try-catch and log warning on failure, returning 0 as default - VersionService.getNextVersion(): wrap all three Integer.parseInt calls with try-catch blocks, using sensible defaults (1.0.0)

bsbodden added 10 commits November 26, 2025 10:32

bsbodden self-assigned this Nov 27, 2025

bsbodden requested a review from Copilot November 27, 2025 15:28

Copilot started reviewing on behalf of bsbodden November 27, 2025 15:29 View session

Copilot finished reviewing on behalf of bsbodden November 27, 2025 15:29

Copilot AI reviewed Nov 27, 2025

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bsbodden merged commit 70b7fa3 into main Nov 27, 2025
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bsbodden deleted the bsb/indexing-ng branch November 27, 2025 16:35

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Dynamic Indexing #693

Dynamic Indexing #693

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bsbodden commented Nov 27, 2025

Summary

Key Features

New Components

Demo Application

Documentation

Important Notes

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