Add s.ai.openai.embedding.options.dimensions documentation

Author: tzolov

models/spring-ai-openai/src/main/java/org/springframework/ai/openai/OpenAiEmbeddingOptions.java

@@ -86,31 +86,31 @@ public OpenAiEmbeddingOptions build() {
 	}
 
 	public String getModel() {
-		return model;
+		return this.model;
 	}
 
 	public void setModel(String model) {
 		this.model = model;
 	}
 
 	public String getEncodingFormat() {
-		return encodingFormat;
+		return this.encodingFormat;
 	}
 
 	public void setEncodingFormat(String encodingFormat) {
 		this.encodingFormat = encodingFormat;
 	}
 
 	public Integer getDimensions() {
-		return dimensions;
+		return this.dimensions;
 	}
 
 	public void setDimensions(Integer dimensions) {
 		this.dimensions = dimensions;
 	}
 
 	public String getUser() {
-		return user;
+		return this.user;
 	}
 
 	public void setUser(String user) {

spring-ai-docs/src/main/antora/modules/ROOT/pages/api/embeddings/openai-embeddings.adoc

@@ -94,6 +94,7 @@ The prefix `spring.ai.openai.embedding` is property prefix that configures the `
 | spring.ai.openai.embedding.options.model      | The model to use      | text-embedding-ada-002 (other options: text-embedding-3-large, text-embedding-3-small)
 | spring.ai.openai.embedding.options.encodingFormat   | The format to return the embeddings in. Can be either float or base64.  | -
 | spring.ai.openai.embedding.options.user   | A unique identifier representing your end-user, which can help OpenAI to monitor and detect abuse.  | -
+| spring.ai.openai.embedding.options.dimensions   | The number of dimensions the resulting output embeddings should have. Only supported in `text-embedding-3` and later models.  | -
 |====
 
 NOTE: You can override the common `spring.ai.openai.base-url` and `spring.ai.openai.api-key` for the `ChatClient` and `EmbeddingClient` implementations.