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o:validateAll validates validates if ALL of the given UIInput components have been filled out. The default message is

{0}: Please fill out all of those fields

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General usage of all multiple field validators

This validator must be placed inside the same UIForm as the UIInput components in question. The UIInput components must be referenced by a space separated collection of their client IDs in the components attribute. This validator can be placed anywhere in the form, but keep in mind that the components will be validated in the order as they appear in the form. So if this validator is been placed before all of the components, then it will be executed before any of the component's own validators. If this validator fails, then the component's own validators will not be fired. If this validator is been placed after all of the components, then it will be executed after any of the component's own validators. If any of them fails, then this validator will not be exeucted. It is not recommended to put this validator somewhere in between the referenced components as the resulting behaviour may be confusing. Put this validator either before or after all of the components, depending on how you would like to prioritize the validation.

<o:validateMultipleFields id="myId" components="foo bar baz" />
<h:message for="myId" />
<h:inputText id="foo" />
<h:inputText id="bar" />
<h:inputText id="baz" />
                

By default, in an invalidating case, all of the referenced components will be marked invalid and a faces message will be added on the client ID of this validator component. The default message can be changed by the message attribute. Any "{0}" placeholder in the message will be substituted with a comma separated string of labels of the referenced input components.

<o:validateMultipleFields components="foo bar baz" message="{0} are wrong!" />
                

You can use invalidateAll="false" to mark only those components which are actually invalid as invalid. In case of for example "input all" or "input all or none" validation, that would be only the fields which are left empty.

<o:validateMultipleFields components="foo bar baz" message="{0} are wrong!" invalidateAll="false" />
                

The faces message can also be shown for all of the referenced components using showMessageFor="@all".

<o:validateMultipleFields components="foo bar baz" message="This is wrong!" showMessageFor="@all" />
<h:inputText id="foo" />
<h:message for="foo" />
<h:inputText id="bar" />
<h:message for="bar" />
<h:inputText id="baz" />
<h:message for="baz" />
                

The faces message can also be shown for only the invalidated components using showMessageFor="@invalid".

<o:validateMultipleFields components="foo bar baz" message="This is wrong!" showMessageFor="@invalid" />
                

The faces message can also be shown as global message using showMessageFor="@global".

<o:validateMultipleFields components="foo bar baz" message="This is wrong!" showMessageFor="@global" />
                

The faces message can also be shown for specific components referenced by a space separated collection of their client IDs in showMessageFor attribute.

<o:validateMultipleFields components="foo bar baz" message="This is wrong!" showMessageFor="foo baz" />
                

The showMessageFor attribute defaults to @this.

The validator can be disabled by the disabled attribute. It accepts a request based EL expression.

<o:validateMultipleFields components="foo bar baz" disabled="#{param.validationDisabled}" />
                

There is a read-only validationFailed attribute which can be used to determine if the validation by this component has failed.

<o:validateMultipleFields id="myId" binding="#{myId}" components="foo bar baz" />
<h:panelGroup rendered="#{myId.validationFailed}">
    Validation has failed! <h:message for="myId" />
</h:panelGroup>