com.tensegrity.graph.rule.persistence
Class RuleBuilder

java.lang.Object
  com.tensegrity.graph.rule.persistence.RuleBuilder

All Implemented Interfaces:

Builder

public class RuleBuilder

extends java.lang.Object

implements Builder

RuleBuilder creates a Rule instance from a given AttributeList.

The following items are optional, all other items are mandatory. This is true for all rules but the GraphRule.

• RuleConstants.COPYABLE
• RuleConstants.CUTABLE
• RuleConstants.PROHIBITEDGESPLITS
• RuleConstants.DROPHANDLERNAME
• RuleConstants.NODEMOVEDINSUBGRAPHHANDLERNAME
• RuleConstants.OVERLAYHANDLERNAME
• RuleConstants.LEGALSUBGRAPHS
• RuleConstants.LEGALSUBGRAPHS
• RuleConstants.DISALLOWEDGESPLITRULE

The following items are optional for a GraphRule, all other items are mandatory.

• RuleConstants.DROPHANDLERNAME
• RuleConstants.LEGALCROSSVISUALSUBGRAPHEDGES
• RuleConstants.EDGESPLITTOLERANCE

Only the first attribute with a specific name is significant in the method build(AttributeList). All further attributes with the same name are not considered.

Version:

$Id: RuleBuilder.java,v 1.45 2005/11/02 16:16:22 MichaelKegel Exp $

Author:

Gilles Iachelini, Stepan Rutz

Constructor Summary

RuleBuilder()
Constructs a new RuleBuilder instance.

Method Summary

java.lang.Object

build(AttributeList attributes) Builds an object from the given AttributeList by reading all required Attributes and its values and creating the object from.

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleBuilder

public RuleBuilder()

Constructs a new RuleBuilder instance.

Method Detail

build

public java.lang.Object build(AttributeList attributes)
                       throws BuildException

Description copied from interface: Builder

Builds an object from the given AttributeList by reading all required Attributes and its values and creating the object from.

Specified by:

build in interface Builder

Parameters:

attributes - the AttributeList holding the informations specifying the object to be build.

Returns:

Object the built object.

Throws:

BuildException - whenever an error occurs while building an object.

See Also:

Builder.build(AttributeList)