http://www.jboss.org/undertow-parent/undertow-core: Undertow (JBoss by Red Hat) 
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 *
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package io.undertow.predicate;

import java.util.Map;
import java.util.Set;


An interface that knows how to build a predicate from a textual representation. This is loaded
using a service loader to make it configurable.


This makes it easy to configure conditions based on a string representation

Author:Stuart Douglas
/**
 * An interface that knows how to build a predicate from a textual representation. This is loaded
 * using a service loader to make it configurable.
 * <p>
 * This makes it easy to configure conditions based on a string representation
 *
 * @author Stuart Douglas
 */
public interface PredicateBuilder {

    
The string representation of the predicate name.

Returns:The predicate name
/**
     * The string representation of the predicate name.
     *
     * @return The predicate name
     */
    String name();

    
Returns a map of parameters and their types.

/**
     * Returns a map of parameters and their types.
     */
    Map<String, Class<?>> parameters();

    
Returns:The required parameters
/**
     *
     * @return The required parameters
     */
    Set<String> requiredParameters();

    
Returns:The default parameter name, or null if it does not have a default parameter
/**
     * @return The default parameter name, or null if it does not have a default parameter
     */
    String defaultParameter();

    
Creates a predicate

Params:
  • config – The predicate config
Returns:The new predicate
/**
     * Creates a predicate
     *
     * @param config The predicate config
     * @return The new predicate
     */
    Predicate build(final Map<String, Object> config);

}