it.amattioli.workstate.config
Class MetaAttributeBuilder

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java.lang.Object
  it.amattioli.workstate.config.MetaAttributeBuilder

public class MetaAttributeBuilder
extends Object

Build a MetaAttribute starting from the strings read from a data source.

Constructor Summary

MetaAttributeBuilder(String tag, String attrClass, String initialExpr)
Constructs a builder given the base MetaAttribute parameters: The tag The class The initial value

Method Summary

void	addValidator(String validator) Add a validator object for the attribute.
MetaAttribute	getBuiltAttribute() The built MetaAttribute.

Methods inherited from class java.lang.Object

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

Constructor Detail

MetaAttributeBuilder

public MetaAttributeBuilder(String tag,
                            String attrClass,
                            String initialExpr)

Constructs a builder given the base MetaAttribute parameters:

• The tag
• The class
• The initial value

Parameters:

tag - the MetaAttribute tag

attrClass - the MetaAttribute class

initialExpr - the initial value. This string will be interpreted as a BeanShell expression whose result must be of the class given in the attrClass parameter

Throws:

IllegalArgumentException - if the initial value expression is incorrect

Method Detail

addValidator

public void addValidator(String validator)

Add a validator object for the attribute. The string can be given in two distinct ways:

• The name of a class that implements the AttributeValidator class followed by the constructor parameters.
• A BeanShell script between curly braces.

Parameters:

validator - the string that define the validator object

Throws:

IllegalArgumentException - if the passed string is incorrect

ClassCastException - if the resulting object does not implements the AttributeValidator interface

getBuiltAttribute

public MetaAttribute getBuiltAttribute()

The built MetaAttribute.