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home » api » docs » common » ref » com » sun » star » form » validation

Overview

Module

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Devguide

Index

Methods' Summary

Attributes' Summary

Methods' Details

Attributes' Details

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:: com :: sun :: star :: form :: validation ::

unpublished interface XValidator

Usage Restrictions not published Description specifies a component able to validate (the content of) other components Validators support simple validity checks and retrieving justifications for invalidity. Validators may additionally support dynamic validity constraints. In such a case, the validity of a given value may change, without the value changing itself. To be notified about this, interested components should register as XValidityConstraintListener. See also XValidatable

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Methods' Summary
isValid	determines whether the given value is valid
explainInvalid	retrieves a justification for the invalidity of the given value
addValidityConstraintListener	registers the given validity listener.
removeValidityConstraintListener	revokes the given validity listener

Methods' Details

isValid boolean isValid( [in] any  Value ); Description determines whether the given value is valid Parameter aValue the value to check for validity Returns true if and only if the value is considered valid.

explainInvalid string explainInvalid( [in] any  Value ); Description retrieves a justification for the invalidity of the given value Parameter aValue the value which has been recognized as being invalid Returns a human-readable string, which explains why the given valus is considered invalid.

addValidityConstraintListener void addValidityConstraintListener( [in] XValidityConstraintListener  Listener ) raises( ::com::sun::star::lang::NullPointerException ); Description registers the given validity listener. Usually, an XValidatable instance will also add itself as validity listener, as soon as the validator is introduced to it. Implementations which do not support dynamic validity contraints should simply ignore this call. Throws ::com::sun::star::lang::NullPointerException if the given listener is NULL See also XValidityConstraintListener

removeValidityConstraintListener void removeValidityConstraintListener( [in] XValidityConstraintListener  Listener ) raises( ::com::sun::star::lang::NullPointerException ); Description revokes the given validity listener Throws ::com::sun::star::lang::NullPointerException if the given listener is NULL See also XValidityConstraintListener

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