All Known Subinterfaces:

AttributeDefinition, PropertyDefinition, TemplateVariable

All Known Implementing Classes:

PropertyDefinitionImpl, TemplateVariableImpl
```
public interface Attribute
```
Defines the contract for an attribute, which represents a characteristic of an entity or property.
An attribute has a name, description, type, and optional constraints such as minimum/maximum values and a regular expression for validation. It can also have a default value.

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`DEFAULT_VALUE_PROPERTY`	The property name for the attribute's default value.
`static String`	`DESCRIPTION_PROPERTY`	The property name for the attribute's description.
`static String`	`MAX_PROPERTY`	The property name for the attribute's maximum value constraint.
`static String`	`MIN_PROPERTY`	The property name for the attribute's minimum value constraint.
`static String`	`NAME`	The name of the attribute type.
`static String`	`NAME_PROPERTY`	The property name for the attribute's name.
`static String`	`PROPERTY_TYPE_PROPERTY`	The property name for the attribute's property type.
`static String`	`REGEX_PROPERTY`	The property name for the attribute's regular expression constraint.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Object`	`getDefaultValue()`	Returns the default value of the attribute.
`String`	`getDescription()`	Returns the description of the attribute.
`Number`	`getMax()`	Returns the upper bound of the attribute.
`Number`	`getMin()`	Returns the lower bound of the attribute.
`String`	`getName()`	Returns the name of the attribute.
`String`	`getPropertyType()`	Returns the property type of the attribute as a string.
`PropertyTypeName`	`getPropertyTypeName()`	Returns the property type as a `PropertyTypeName` enum.
`String`	`getRegexp()`	Returns the regular expression used to validate the attribute's value.
`void`	`setDefaultValue(Object defaultValue)`	Sets the default value of the attribute.
`void`	`setDescription(String description)`	Sets the description of the attribute.
`void`	`setMax(Number max)`	Sets the upper bound of the attribute.
`void`	`setMin(Number min)`	Sets the lower bound of the attribute.
`void`	`setName(String name)`	Sets the name of the attribute.
`void`	`setPropertyType(String type)`	Sets the property type of the attribute.
`void`	`setRegexp(String regexp)`	Sets the regular expression for validating the attribute's value.

- Field Detail
  - NAME
```
static final String NAME
```
    The name of the attribute type.
    
    See Also:
    
    Constant Field Values
  - NAME_PROPERTY
```
static final String NAME_PROPERTY
```
    The property name for the attribute's name.
    
    See Also:
    
    Constant Field Values
  - DESCRIPTION_PROPERTY
```
static final String DESCRIPTION_PROPERTY
```
    The property name for the attribute's description.
    
    See Also:
    
    Constant Field Values
  - MAX_PROPERTY
```
static final String MAX_PROPERTY
```
    The property name for the attribute's maximum value constraint.
    
    See Also:
    
    Constant Field Values
  - MIN_PROPERTY
```
static final String MIN_PROPERTY
```
    The property name for the attribute's minimum value constraint.
    
    See Also:
    
    Constant Field Values
  - REGEX_PROPERTY
```
static final String REGEX_PROPERTY
```
    The property name for the attribute's regular expression constraint.
    
    See Also:
    
    Constant Field Values
  - PROPERTY_TYPE_PROPERTY
```
static final String PROPERTY_TYPE_PROPERTY
```
    The property name for the attribute's property type.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_VALUE_PROPERTY
```
static final String DEFAULT_VALUE_PROPERTY
```
    The property name for the attribute's default value.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getName
```
String getName()
```
    Returns the name of the attribute.
    
    Returns:
    
    The attribute's name.
  - setName
```
void setName(String name)
```
    Sets the name of the attribute.
    
    Parameters:
    
    name - The name to set.
  - getDescription
```
String getDescription()
```
    Returns the description of the attribute.
    
    Returns:
    
    The attribute's description.
  - setDescription
```
void setDescription(String description)
```
    Sets the description of the attribute.
    
    Parameters:
    
    description - The description to set.
  - getPropertyType
```
String getPropertyType()
```
    Returns the property type of the attribute as a string.
    
    Returns:
    
    The property type.
  - setPropertyType
```
void setPropertyType(String type)
```
    Sets the property type of the attribute.
    
    Parameters:
    
    type - The property type to set.
  - getPropertyTypeName
```
PropertyTypeName getPropertyTypeName()
```
    Returns the property type as a PropertyTypeName enum.
    This method is ignored during JSON serialization.
    
    Returns:
    
    The PropertyTypeName enum constant.
  - getDefaultValue
```
Object getDefaultValue()
```
    Returns the default value of the attribute.
    
    Returns:
    
    The default value.
  - setDefaultValue
```
void setDefaultValue(Object defaultValue)
```
    Sets the default value of the attribute.
    
    Parameters:
    
    defaultValue - The default value to set.
  - getMax
```
Number getMax()
```
    Returns the upper bound of the attribute.
    The bound is an integer, unless the attribute admits a decimal one: a PropertyDefinition whose base type is Double or Float.
    
    Returns:
    
    The upper bound, or null if not set.
  - setMax
```
void setMax(Number max)
```
    Sets the upper bound of the attribute.
    
    Parameters:
    
    max - The upper bound to set, null for none.
  - getMin
```
Number getMin()
```
    Returns the lower bound of the attribute.
    The bound is an integer, unless the attribute admits a decimal one: a PropertyDefinition whose base type is Double or Float.
    
    Returns:
    
    The lower bound, or null if not set.
  - setMin
```
void setMin(Number min)
```
    Sets the lower bound of the attribute.
    
    Parameters:
    
    min - The lower bound to set, null for none.
  - getRegexp
```
String getRegexp()
```
    Returns the regular expression used to validate the attribute's value.
    
    Returns:
    
    The regular expression, or null if not set.
  - setRegexp
```
void setRegexp(String regexp)
```
    Sets the regular expression for validating the attribute's value.
    
    Parameters:
    
    regexp - The regular expression to set.

Interface Attribute

Field Summary

Method Summary

Field Detail

NAME

NAME_PROPERTY

DESCRIPTION_PROPERTY

MAX_PROPERTY

MIN_PROPERTY

REGEX_PROPERTY

PROPERTY_TYPE_PROPERTY

DEFAULT_VALUE_PROPERTY

Method Detail

getName

setName

getDescription

setDescription

getPropertyType

setPropertyType

getPropertyTypeName

getDefaultValue

setDefaultValue

getMax

setMax

getMin

setMin

getRegexp

setRegexp