com.datastax.oss.driver.api.mapper.annotations

Annotation Type Computed

@Target(value={FIELD,METHOD})
 @Retention(value=RUNTIME)
public @interface Computed

Annotates the field or getter of an Entity property, to indicate that when retrieving data that the property should be set to the result of computation on the Cassandra side, typically a function call.

Example:

 @Computed("writetime(v)")
 private int writeTime;
 

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
String	value The formula used to compute the property.

Element Detail

value

public abstract String value

The formula used to compute the property.

This is a CQL expression like you would use directly in a query, for instance writetime(v).

Returns:

the formula.