Package net.officefloor.gef.configurer

Interface ValueValidator<M,V>

public interface ValueValidator<M,V>

Validates the value.

Author:

Daniel Sagenschneider

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	ValueValidator.ValueValidatorContext<M,V>	Context for the ValueValidator.

Method Summary

Modifier and Type	Method	Description
static <M> ValueValidator<M,java.lang.String>	notEmptyString(java.lang.String errorMessage)	Convenience ValueValidator for ensuring not an empty String.
static void	notEmptyString(java.lang.String value, java.lang.String errorMessage, ValueValidator.ValueValidatorContext<?,?> context)	Convenience method to provide error if value is empty string.
static void	notNull(java.lang.Object value, java.lang.String errorMessage, ValueValidator.ValueValidatorContext<?,?> context)	Convenience method to provide error if value is null.
static <M,V> ValueValidator<M,V>	notNull(java.lang.String errorMessage)	Convenience ValueValidator for ensuring not null.
void	validate(ValueValidator.ValueValidatorContext<? extends M,V> context)	Undertakes the validation.

Method Detail

notNull

static <M,V> ValueValidator<M,V> notNull(java.lang.String errorMessage)

Convenience ValueValidator for ensuring not null.

Type Parameters:

M - Model type.

V - Value type.

Parameters:

errorMessage - Error message if null.

Returns:

ValueValidator to validate not null.

notNull

static void notNull(java.lang.Object value,
                    java.lang.String errorMessage,
                    ValueValidator.ValueValidatorContext<?,?> context)

Convenience method to provide error if value is null.

Parameters:

value - Value to check for null.

errorMessage - Error message if empty string.

context - ValueValidator.ValueValidatorContext.

notEmptyString

static <M> ValueValidator<M,java.lang.String> notEmptyString(java.lang.String errorMessage)

Convenience ValueValidator for ensuring not an empty String.

Type Parameters:

M - Model type.

Parameters:

errorMessage - Error message if empty String.

Returns:

ValueValidator to validate not an empty String.

notEmptyString

static void notEmptyString(java.lang.String value,
                           java.lang.String errorMessage,
                           ValueValidator.ValueValidatorContext<?,?> context)

Convenience method to provide error if value is empty string.

Parameters:

value - Value to check for empty string.

errorMessage - Error message if empty string.

context - ValueValidator.ValueValidatorContext.

validate

void validate(ValueValidator.ValueValidatorContext<? extends M,V> context)
       throws java.lang.Exception

Undertakes the validation.

Parameters:

context - ValueValidator.ValueValidatorContext.

Throws:

java.lang.Exception - If failure in validation. Message of Exception is used as error.