Package docking.wizard
Class WizardStateDependencyValidator<T>
- java.lang.Object
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- docking.wizard.WizardStateDependencyValidator<T>
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public class WizardStateDependencyValidator<T> extends java.lang.Object
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Constructor Summary
Constructors Constructor Description WizardStateDependencyValidator()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addDependency(T dependent, T predecessor)
Registers a dependency from one property state to another.java.util.Set<T>
findAffectedDependants(WizardState<T> globalState)
Returns a set of all property keys that need to have their values set because a predecessor property has been changed that may affect the valid values for this property.void
updatePropertyValues(WizardState<T> globalState)
Updates the local cache values for all the relevant properties.
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Method Detail
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addDependency
public void addDependency(T dependent, T predecessor)
Registers a dependency from one property state to another. If the predecessor is null, then the dependent is registered such that a call tofindAffectedDependants(WizardState)
will include that property key only if its cached value is null. (i.e. the first time it is called.)- Parameters:
dependent
- the property key that depends on a previous property being set.predecessor
- the property key of the property that affects the dependent property.
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findAffectedDependants
public java.util.Set<T> findAffectedDependants(WizardState<T> globalState)
Returns a set of all property keys that need to have their values set because a predecessor property has been changed that may affect the valid values for this property. Also, any property keys that don't have a value in the local cache will be returned.- Parameters:
globalState
- the global WizardState that is passed from one wizard panel to the next.- Returns:
- the set of property keys whose values should be (re)computed.
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updatePropertyValues
public void updatePropertyValues(WizardState<T> globalState)
Updates the local cache values for all the relevant properties. This method should be called from a wizard panel when the "next" action is invoked (i.e. the user values have been accepted).- Parameters:
globalState
- The WizardState containing all the property values.
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