[TAMAYA-253] Make raw evaluation of policy pluggable.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.2-incubating
• Fix Version/s: 0.3-incubating
• Component/s: Core, tamaya-spisupport
• Labels: Raw-Property-Evaluation tamaya-clarifying-03 tamaya-wating-response
• Assignee: Anatole Tresch
• Reporter: Anatole Tresch
• Created: 01/Mar/17 09:23
• Updated: 18/Sep/17 19:34
• Resolved: 05/Mar/17 23:31

Description

Make the evaluation part for the raw properties (before they enter the filter chain) pluggable. The interface proposed (including a default implementation in core/spi-support):

/**
 * Component SPI which encapsulates the evaluation of a single or full <b>raw</b>value
 * for a {@link ConfigurationContext}.
 */
public interface ConfigValueEvaluator {

    /**
     * Evaluates single value using a {@link ConfigurationContext}.
     * @param key the config key, not null.
     * @param context the context, not null.
     * @return the value, or null.
     */
    PropertyValue evaluteRawValue(String key, ConfigurationContext context);

    /**
     * Evaluates all property values from a {@link ConfigurationContext}.
     * @param context the context, not null.
     * @return the value, or null.
     */
    Iterable<PropertyValue> evaluateRawValues(ConfigurationContext context);

}