com.openharbor.beck.configure
Class DefaultPredicate

java.lang.Object
  com.openharbor.beck.configure.DefaultPredicate

All Implemented Interfaces:

Predicate

public class DefaultPredicate

extends java.lang.Object

implements Predicate

A Predicate that matches selector values to conditions of its configuration. So, the configuration conditions are interpreted as a crude Boolean expression language.

Field Summary

static XMLName[]	BOOLEAN_PROPERTIES
static XMLName[]	CLASS_PROPERTIES
protected java.util.Map	conditions
protected org.apache.commons.logging.Log	log
static XMLName[]	QNAME_PROPERTIES

Constructor Summary

DefaultPredicate()

Method Summary

void	configure(Unmarshaller parent, XMLThing source) Set configuration parameters.
boolean	evaluate(Configuration.Selector selector) Determine whether this predicate is true for the given selector.
protected boolean	match(Configuration.MarshalSelector selector)
protected boolean	match(Configuration.UnmarshalSelector selector)
protected boolean	matchAttribute(java.lang.Object expectedKey, boolean isAttribute, XMLName actual)
protected boolean	matchClass(java.lang.Object expectedKey, java.lang.Class actual)
protected boolean	matchClassIsArray(java.lang.Class actual)
protected boolean	matchElement(java.lang.Object expectedKey, boolean isAttribute, XMLName actual)
protected boolean	matchName(java.lang.Object expected, java.lang.Object actual)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

log

protected final org.apache.commons.logging.Log log

BOOLEAN_PROPERTIES

public static final XMLName[] BOOLEAN_PROPERTIES

QNAME_PROPERTIES

public static final XMLName[] QNAME_PROPERTIES

CLASS_PROPERTIES

public static final XMLName[] CLASS_PROPERTIES

conditions

protected java.util.Map conditions

Constructor Detail

DefaultPredicate

public DefaultPredicate()

Method Detail

configure

public void configure(Unmarshaller parent,
                      XMLThing source)

Description copied from interface: Predicate

Set configuration parameters. This method need not be thread-safe.

Specified by:

configure in interface Predicate

Parameters:

parent - a handle on the When that contains this Predicate.

source - configuration parameters (as XML conditions)

toString

public java.lang.String toString()

evaluate

public boolean evaluate(Configuration.Selector selector)

Description copied from interface: Predicate

Determine whether this predicate is true for the given selector. This method must be thread-safe; that is, when called concurrently by multiple threads, the value returned to each thread must be independent of the threads' order of execution. This is ordinarily achieved by not modifying any objects.

Specified by:

evaluate in interface Predicate

match

protected boolean match(Configuration.MarshalSelector selector)

match

protected boolean match(Configuration.UnmarshalSelector selector)

matchName

protected boolean matchName(java.lang.Object expected,
                            java.lang.Object actual)

matchAttribute

protected boolean matchAttribute(java.lang.Object expectedKey,
                                 boolean isAttribute,
                                 XMLName actual)

matchElement

protected boolean matchElement(java.lang.Object expectedKey,
                               boolean isAttribute,
                               XMLName actual)

matchClass

protected boolean matchClass(java.lang.Object expectedKey,
                             java.lang.Class actual)

matchClassIsArray

protected boolean matchClassIsArray(java.lang.Class actual)