ddf.catalog.validation

Interface AttributeValidatorRegistry

All Known Implementing Classes:

AttributeValidatorRegistryImpl

public interface AttributeValidatorRegistry

Manages registered attribute validators.

This code is experimental. While this interface is functional and tested, it may change or be removed in a future version of the library.

Method Summary

Modifier and Type	Method and Description
void	deregisterValidators(String attributeName) Deregisters all AttributeValidators associated with the given attribute name.
Set<AttributeValidator>	getValidators(String attributeName) Gets all the AttributeValidators associated with the given attribute name.
void	registerValidators(String attributeName, Set<? extends AttributeValidator> validators) Registers the given AttributeValidator(s) to the given attribute name.

Method Detail

registerValidators

void registerValidators(String attributeName,
                        Set<? extends AttributeValidator> validators)

Registers the given AttributeValidator(s) to the given attribute name.

This method doesn't care whether an attribute with the given name actually exists; it is only responsible for managing the validators associated with a given attribute name.

Note that the AttributeValidator implementations registered should implement Object.hashCode() and Object.equals(Object) so that duplicate validators aren't registered for an attribute.

Parameters:

attributeName - the name of the attribute that the given validators will validate

validators - the AttributeValidators to apply to the attribute

Throws:

IllegalArgumentException - if attributeName is null, or if no AttributeValidators were passed

deregisterValidators

void deregisterValidators(String attributeName)

Deregisters all AttributeValidators associated with the given attribute name.

Does nothing if there are no validators registered to the given attribute name.

Parameters:

attributeName - the name of the attribute whose validators will be deregistered, cannot be null

Throws:

IllegalArgumentException - if attributeName is null

getValidators

Set<AttributeValidator> getValidators(String attributeName)

Gets all the AttributeValidators associated with the given attribute name.

Parameters:

attributeName - the name of the attribute, cannot be null

Returns:

the set of AttributeValidators registered to the attribute, or an empty set if no attribute by that name exists.

Throws:

IllegalArgumentException - if attributeName is null