java.lang.Object
- java.lang.Enum<AccessType>
- - org.gcube.informationsystem.base.reference.AccessType

All Implemented Interfaces:

Serializable, Comparable<AccessType>
```
public enum AccessType
extends Enum<AccessType>
```
Enumerates the fundamental types of elements within the Information System model.
This enum serves as a central registry for all element types, mapping them to their corresponding interface, implementation, and (where applicable) dummy implementation classes. It provides utility methods for type lookup and classification.

Author:

Luca Frosini (ISTI - CNR)

Enum Constant Summary

Enum Constants
Enum Constant	Description
`CONSISTS_OF`	Represents a composition relationship, where one resource is part of another.
`CONTEXT`	Represents a hierarchical context for organizing resources.
`ENTITY`	Represents a generic entity instance.
`ENTITY_ELEMENT`	Represents an entity element, the base for all entity types.
`ENTITY_TYPE`	Represents the type of an entity, defining its structure and attributes.
`FACET`	Represents a facet, which adds supplementary information to a resource.
`IS_PARENT_OF`	Represents a parent-child relationship between contexts.
`IS_RELATED_TO`	Represents a relationship between two resources.
`PROPERTY`	Represents a generic property instance.
`PROPERTY_DEFINITION`	Represents the definition of a property, including constraints and metadata.
`PROPERTY_ELEMENT`	Represents a property element, the base for all property types.
`PROPERTY_TYPE`	Represents the type of a property, defining its data type and structure.
`QUERY_TEMPLATE`	Represents a template for constructing queries.
`RELATION`	Represents a generic relation instance.
`RELATION_ELEMENT`	Represents a relation element, the base for all relation types.
`RELATION_TYPE`	Represents the type of a relation, defining its semantics and constraints.
`RESOURCE`	Represents a primary resource in the system.
`TEMPLATE_VARIABLE`	Represents a variable used within a query template.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static AccessType`	`getAccessType(Class<?> clz)`	Determines the most specific `AccessType` for a given class.
`static AccessType`	`getAccessType(String typeName)`	Retrieves an `AccessType` enum constant by its type name.
`<ISM extends Element,ISMC extends ISM,ISMD extends ISMC> Class<ISMD>`	`getDummyImplementationClass()`	Returns the dummy implementation class for this access type, if one exists.
`static AccessType[]`	`getERTypes()`	Returns an array of access types representing entities and relations in the model.
`<ISM extends Element,ISMC extends ISM> Class<ISMC>`	`getImplementationClass()`	Returns the primary implementation class for this access type.
`static AccessType[]`	`getModelTypes()`	Returns an array of access types that are part of the core data model.
`String`	`getName()`	Returns the official name of the access type.
`<ISM extends Element> Class<ISM>`	`getTypeClass()`	Returns the interface class associated with this access type.
`String`	`lowerCaseFirstCharacter()`	Returns the name of the access type with its first character in lowercase.
`static Set<String>`	`names()`	Returns a set of all defined access type names.
`String`	`toString()`
`static AccessType`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static AccessType[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - PROPERTY_ELEMENT
```
public static final AccessType PROPERTY_ELEMENT
```
    Represents a property element, the base for all property types.
  - PROPERTY_DEFINITION
```
public static final AccessType PROPERTY_DEFINITION
```
    Represents the definition of a property, including constraints and metadata.
  - PROPERTY_TYPE
```
public static final AccessType PROPERTY_TYPE
```
    Represents the type of a property, defining its data type and structure.
  - TEMPLATE_VARIABLE
```
public static final AccessType TEMPLATE_VARIABLE
```
    Represents a variable used within a query template.
  - PROPERTY
```
public static final AccessType PROPERTY
```
    Represents a generic property instance.
  - ENTITY_ELEMENT
```
public static final AccessType ENTITY_ELEMENT
```
    Represents an entity element, the base for all entity types.
  - ENTITY_TYPE
```
public static final AccessType ENTITY_TYPE
```
    Represents the type of an entity, defining its structure and attributes.
  - QUERY_TEMPLATE
```
public static final AccessType QUERY_TEMPLATE
```
    Represents a template for constructing queries.
  - CONTEXT
```
public static final AccessType CONTEXT
```
    Represents a hierarchical context for organizing resources.
  - ENTITY
```
public static final AccessType ENTITY
```
    Represents a generic entity instance.
  - RESOURCE
```
public static final AccessType RESOURCE
```
    Represents a primary resource in the system.
  - FACET
```
public static final AccessType FACET
```
    Represents a facet, which adds supplementary information to a resource.
  - RELATION_ELEMENT
```
public static final AccessType RELATION_ELEMENT
```
    Represents a relation element, the base for all relation types.
  - RELATION_TYPE
```
public static final AccessType RELATION_TYPE
```
    Represents the type of a relation, defining its semantics and constraints.
  - IS_PARENT_OF
```
public static final AccessType IS_PARENT_OF
```
    Represents a parent-child relationship between contexts.
  - RELATION
```
public static final AccessType RELATION
```
    Represents a generic relation instance.
  - IS_RELATED_TO
```
public static final AccessType IS_RELATED_TO
```
    Represents a relationship between two resources.
  - CONSISTS_OF
```
public static final AccessType CONSISTS_OF
```
    Represents a composition relationship, where one resource is part of another.
- Method Detail
  - values
```
public static AccessType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (AccessType c : AccessType.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static AccessType valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - getTypeClass
```
public <ISM extends Element> Class<ISM> getTypeClass()
```
    Returns the interface class associated with this access type.
    
    Type Parameters:
    
    ISM - The element type.
    
    Returns:
    
    The Class of the element's interface.
  - getImplementationClass
```
public <ISM extends Element,ISMC extends ISM> Class<ISMC> getImplementationClass()
```
    Returns the primary implementation class for this access type.
    
    Type Parameters:
    
    ISM - The element type.
    
    ISMC - The element's implementation type.
    
    Returns:
    
    The Class of the primary implementation.
  - getDummyImplementationClass
```
public <ISM extends Element,ISMC extends ISM,ISMD extends ISMC> Class<ISMD> getDummyImplementationClass()
```
    Returns the dummy implementation class for this access type, if one exists.
    Dummy implementations are used for lightweight representations or placeholders.
    
    Type Parameters:
    
    ISM - The element type.
    
    ISMC - The element's implementation type.
    
    ISMD - The element's dummy implementation type.
    
    Returns:
    
    The Class of the dummy implementation, or null.
  - getName
```
public String getName()
```
    Returns the official name of the access type.
    
    Returns:
    
    The type name.
  - lowerCaseFirstCharacter
```
public String lowerCaseFirstCharacter()
```
    Returns the name of the access type with its first character in lowercase.
    
    Returns:
    
    The name with a lowercase first character.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Enum<AccessType>
  - names
```
public static Set<String> names()
```
    Returns a set of all defined access type names.
    
    Returns:
    
    A Set of type names.
  - getAccessType
```
public static AccessType getAccessType(String typeName)
```
    Retrieves an AccessType enum constant by its type name.
    
    Parameters:
    
    typeName - The name of the type to find.
    
    Returns:
    
    The corresponding AccessType, or null if no match is found.
  - getAccessType
```
public static AccessType getAccessType(Class<?> clz)
```
    Determines the most specific AccessType for a given class.
    This method traverses the class hierarchy to find the most derived matching access type.
    
    Parameters:
    
    clz - The class to analyze.
    
    Returns:
    
    The most specific AccessType for the class.
    
    Throws:
    
    RuntimeException - if the class does not correspond to any defined access type.
  - getModelTypes
```
public static AccessType[] getModelTypes()
```
    Returns an array of access types that are part of the core data model.
    These types include Property, Resource, Facet, IsRelatedTo, and ConsistsOf.
    
    Returns:
    
    An array of core model AccessTypes.
  - getERTypes
```
public static AccessType[] getERTypes()
```
    Returns an array of access types representing entities and relations in the model.
    These types include Resource, Facet, IsRelatedTo, and ConsistsOf.
    
    Returns:
    
    An array of entity/relation AccessTypes.

Enum AccessType

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

PROPERTY_ELEMENT

PROPERTY_DEFINITION

PROPERTY_TYPE

TEMPLATE_VARIABLE

PROPERTY

ENTITY_ELEMENT

ENTITY_TYPE

QUERY_TEMPLATE

CONTEXT

ENTITY

RESOURCE

FACET

RELATION_ELEMENT

RELATION_TYPE

IS_PARENT_OF

RELATION

IS_RELATED_TO

CONSISTS_OF

Method Detail

values

valueOf

getTypeClass

getImplementationClass

getDummyImplementationClass

getName

lowerCaseFirstCharacter

toString

names

getAccessType

getAccessType

getModelTypes

getERTypes