/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.pde.internal.core.ischema;
/**
* Simple schema types can optionally have a restriction
* objects that narrows the value space for the type.
* The restrictions introduce additional requirements
* for the value to be considered valid for the type.
* For example, enumeration restriction defines
* a closed set of values that are legal for the type.
*/
public interface ISchemaRestriction extends ISchemaObject {
/**
* Returns the simple type to which this restriction applies.
* @return simple type to which this restriciton applies
*/
public ISchemaSimpleType getBaseType();
/**
* Returns children of this restriction. Actual types
* of the children depend on the restriction itself.
* @return restriction children objects
*/
public Object[] getChildren();
/**
* Tests if the provided value belongs to
* the value set defined by this restriction.
* @return true if the provided value
* is valid for this restriction
*/
boolean isValueValid(Object value);
/**
* Associates this restriction with the simple type object.
*
* @param baseType type object that owns this restriction
*/
public void setBaseType(ISchemaSimpleType baseType);
}
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