org.ceryle.wiki.plugin.assertion
Class Property

java.lang.Object
  org.ceryle.wiki.plugin.query.Term
      org.ceryle.wiki.plugin.assertion.Property

All Implemented Interfaces:

Operand

public class Property
extends Term

A Property is part of a QueryItem's formal Expression that corresponds to a property name-value pairing. This extends Term, overriding its page checks. The value of a Property (within the Expression) evaluates to true if it contains non-null data for its name and value. The value is left as an Object so that it can contain potentially any kind of data.

Datatyping is planned but left for the future.

Author:

Murray Altheim

Nested Class Summary

Nested classes/interfaces inherited from interface org.ceryle.wiki.plugin.query.Operand

Operand.NullOperand

Field Summary

Fields inherited from class org.ceryle.wiki.plugin.query.Term

ALL_PAGES, ALL_PAGES_REGEX

Fields inherited from interface org.ceryle.wiki.plugin.query.Operand

NULL

Constructor Summary

Property(String name, Object value)
Constructor, takes a String property name and value.

Method Summary

boolean	evaluateOperand(Modifier modifier, ReferenceInfoProvider refInfoProvider, String pageName) Overrides Term's method, returning true if this Property contains a non-null String.
String	getName() Return the property name.
String	getPageName() Overrides the superclass method, returning null.
Object	getValue() Return the property value.
String	toString() Return the property name and value as an equation name="value".

Methods inherited from class java.lang.Object

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

Constructor Detail

Property

public Property(String name,
                Object value)

Constructor, takes a String property name and value.

Parameters:

value -

Method Detail

evaluateOperand

public boolean evaluateOperand(Modifier modifier,
                               ReferenceInfoProvider refInfoProvider,
                               String pageName)
                        throws QueryException

Overrides Term's method, returning true if this Property contains a non-null String.

Specified by:

evaluateOperand in interface Operand

Overrides:

evaluateOperand in class Term

Throws:

QueryException

See Also:

Operand

getPageName

public String getPageName()

Overrides the superclass method, returning null. This method doesn't make sense for properties.

Overrides:

getPageName in class Term

getName

public String getName()

Return the property name. This returns the same thing as toString()

getValue

public Object getValue()

Return the property value.

toString

public String toString()

Return the property name and value as an equation name="value". If the value is not a String, its toString() method is used.

Overrides:

toString in class Term