org.jenkinsci.plugins.structs.describable

Class UninstantiatedDescribable

java.lang.Object

org.jenkinsci.plugins.structs.describable.UninstantiatedDescribable

All Implemented Interfaces:

Serializable

public class UninstantiatedDescribable
extends Object
implements Serializable

A reflection-like view of a particular Describable instance.

Author:

Kohsuke Kawaguchi

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	ANONYMOUS_KEY As a short-hand, if a DescribableModel has only one required parameter, instantiate(Class) accepts a single-item map whose key is this magic token.

Constructor Summary

Constructors

Constructor and Description
UninstantiatedDescribable(Map<String,?> arguments)
UninstantiatedDescribable(String symbol, String klass, Map<String,?> arguments)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
static UninstantiatedDescribable	from(Object o)
Map<String,?>	getArguments() All the nested arguments to this object.
String	getKlass() is an alternative means to specify the class in case there's no symbol.
DescribableModel	getModel() Returns the model associated with this object.
String	getSymbol() If this nested describable has a suitable symbol name, this method returns one.
int	hashCode()
boolean	hasSoleRequiredArgument() Returns true if and only if the arguments is one and that is the only required parameter from the model.
Object	instantiate() Instantiates an actual Describable through the model, unless klass or symbol will be set to specify a specific type, in which case that takes a precedence.
<T> T	instantiate(Class<T> base) Instantiates an actual Describable object from the specified arguments.
void	setKlass(String klass)
void	setModel(DescribableModel model)
void	setSymbol(String symbol)
Map<String,Object>	toMap() For legacy use, we need to blow up this into a map form.
Map<String,Object>	toShallowMap() Converts this UninstantiatedDescribable to a literal map expression without recursively doing so for children.
String	toString() Debug assistance.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

ANONYMOUS_KEY

public static final String ANONYMOUS_KEY

As a short-hand, if a DescribableModel has only one required parameter, instantiate(Class) accepts a single-item map whose key is this magic token.

To avoid clients from needing to special-case this key, from(Object) does not produce arguments that contains this magic token. Clients who want to take advantages of this should look at DescribableModel.hasSingleRequiredParameter()

See Also:

Constant Field Values

Constructor Detail

UninstantiatedDescribable

public UninstantiatedDescribable(String symbol,
                                 String klass,
                                 Map<String,?> arguments)

UninstantiatedDescribable

public UninstantiatedDescribable(Map<String,?> arguments)

Method Detail

getSymbol

@Nullable
public String getSymbol()

If this nested describable has a suitable symbol name, this method returns one.

Either this or getKlass() has to return a non-null value.

setSymbol

public void setSymbol(String symbol)

getKlass

@Nullable
public String getKlass()

is an alternative means to specify the class in case there's no symbol. Can be a short name if it's contextually unambiguous, or a FQCN.

Either this or getSymbol() has to return a non-null value.

setKlass

public void setKlass(String klass)

getModel

public DescribableModel getModel()

Returns the model associated with this object. If this object was created from a model (via from(Object)) this method returns that model.

setModel

public void setModel(DescribableModel model)

getArguments

public Map<String,?> getArguments()

All the nested arguments to this object.

hasSoleRequiredArgument

public boolean hasSoleRequiredArgument()

Returns true if and only if the arguments is one and that is the only required parameter from the model.

This usually signals a short-hand syntax to write down the instantiation syntax.

toMap

public Map<String,Object> toMap()

For legacy use, we need to blow up this into a map form. This requires recursively blowing up any nested UninstantiatedDescribables.

toShallowMap

public Map<String,Object> toShallowMap()

Converts this UninstantiatedDescribable to a literal map expression without recursively doing so for children.

instantiate

public Object instantiate()
                   throws Exception

Instantiates an actual Describable through the model, unless klass or symbol will be set to specify a specific type, in which case that takes a precedence.

Throws:

Exception

instantiate

public <T> T instantiate(Class<T> base)
                  throws Exception

Instantiates an actual Describable object from the specified arguments.

Parameters:

base - The expected type of the instance. The interpretation of the symbol and $class depends on this parameter.

Throws:

Exception

from

public static UninstantiatedDescribable from(Object o)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Debug assistance. The output might change.

Overrides:

toString in class Object