Package com.tnsai.llm.cache

Class HashEmbeddingProvider

java.lang.Object

com.tnsai.llm.cache.HashEmbeddingProvider

All Implemented Interfaces:

EmbeddingProvider

public class HashEmbeddingProvider
extends Object
implements EmbeddingProvider

Simple hash-based embedding provider for testing and development.

This provider creates pseudo-embeddings by hashing the input text. It's NOT suitable for production semantic search, but useful for:

• Unit testing cache functionality
• Development without API keys
• Exact-match caching scenarios

Limitations

Hash-based embeddings only match identical strings. For true semantic similarity (where "How are you?" matches "How're you doing?"), use a real embedding model like OpenAI or sentence-transformers.

Constructor Summary

Constructors

Constructor	Description
HashEmbeddingProvider()
HashEmbeddingProvider(int dimension)

Method Summary

Modifier and Type	Method	Description
float[]	embed(String text)	Generates an embedding vector for the given text.
int	getDimension()	Returns the dimension of the embedding vectors.
String	getModelName()	Returns the name of the embedding model.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.tnsai.llm.cache.EmbeddingProvider

embed, embedBatch, embedBatch

Constructor Details

HashEmbeddingProvider

public HashEmbeddingProvider()

HashEmbeddingProvider

public HashEmbeddingProvider(int dimension)

Method Details

embed

public float[] embed(String text)

Description copied from interface: EmbeddingProvider

Generates an embedding vector for the given text.

Specified by:

embed in interface EmbeddingProvider

Parameters:

text - The text to embed

Returns:

A float array representing the embedding vector

getDimension

public int getDimension()

Description copied from interface: EmbeddingProvider

Returns the dimension of the embedding vectors.

Specified by:

getDimension in interface EmbeddingProvider

getModelName

public String getModelName()

Description copied from interface: EmbeddingProvider

Returns the name of the embedding model.

Specified by:

getModelName in interface EmbeddingProvider