A comprehensive indexing solution built to cater to a wide variety of indexing requirements. It provides a robust API for adding, removing, updating, and finding data based on multiple types of index fields. Including an inverted-indexing of words within a text field.
- Dynamic field creation for indexing
- Supports single, multi, and text-based fields
- Extensible with custom index field types
- Asynchronous API support
- Transactional batch operations
- Formatter and reducer customization
Install the package with:
npm install @plaindb/index
First, import the Indexer
library.
import Indexer from '@plaindb/index'
or
const Indexer = require('@plaindb/index')
const storage = // Your storage instance
const index = new Index(storage, ['name', 'age|gender', 'description text'])
await index.add({
id: 1,
name: 'John',
age: 30,
gender: 'male',
description: 'Software Engineer'
})
await index.remove({
id: 1
})
await index.update(oldEntity, newEntity)
You can find entities based on index fields:
const results = await index.find('age', 30)
You can provide custom formatter and reducer functions through the opts
parameter:
const index = new Index(storage, ['name'], {
formatter: new CustomFormatter(),
reducer: (entity) => entity.customId
})
Index
: Manages multiple index fields and dispatches operations.IndexFactory
: Creates index fields dynamically.IndexField
: Abstract class for index fields.SingleIndexField
: Index field for single properties.MultiIndexField
: Index field for multi-properties.TextIndexField
: Index field for text-based searching.
Index.by(slug)
: Dynamically add an index field.Index.add(entity)
: Add an entity to the index.Index.remove(entity)
: Remove an entity from the index.Index.update(oldEntity, newEntity)
: Update an entity in the index.Index.find(query, ...values)
: Find entities based on a query.
To extend the library with a custom index field, create a class extending IndexField
and register it via Registry
.
In order to run the test suite, simply clone the repository and install its dependencies:
git clone https://gitlab.com/frenware/framework/plaindb/index.git
cd indexer
npm install
To run the tests:
npm test
Thank you! Please see our contributing guidelines for details.
If you find this project useful and want to help support further development, please send us some coin. We greatly appreciate any and all contributions. Thank you!
Bitcoin (BTC):
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Monero (XMR):
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@plaindb/index is MIT licensed.