jfxtras.labs.scene.control

Class BeanPathAdapter.FieldHandle<T,F>

java.lang.Object

jfxtras.labs.scene.control.BeanPathAdapter.FieldHandle<T,F>

Enclosing class:

BeanPathAdapter<B>

protected static class BeanPathAdapter.FieldHandle<T,F>
extends java.lang.Object

Field handle to getAccessor() and getSetter() for a given getTarget().

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FieldHandle(T target, java.lang.String fieldName, java.lang.Class<F> declaredFieldType) Constructor

Method Summary

Modifier and Type	Method and Description
protected static java.lang.invoke.MethodHandle	buildAccessor(java.lang.Object target, java.lang.String fieldName, java.lang.String... fieldNamePrefix) Attempts to build a MethodHandle accessor for the field name using common prefixes used for methods to access a field
protected static java.lang.invoke.MethodHandle	buildAccessorWithLikelyPrefixes(java.lang.Object target, java.lang.String fieldName) Attempts to build a MethodHandle accessor for the field name using common prefixes used for methods to access a field
protected static java.lang.String	buildMethodName(java.lang.String prefix, java.lang.String fieldName) Builds a method name using a prefix and a field name
protected static java.lang.invoke.MethodHandle	buildSetter(java.lang.invoke.MethodHandle accessor, java.lang.Object target, java.lang.String fieldName) Builds a setter MethodHandle
F	defaultValue() Gets a default value for the getDeclaredFieldType()
static <VT> VT	defaultValue(java.lang.Class<VT> clazz) Gets a default value for the specified class
protected F	deriveValueFromAccessor(boolean isNullable) Gets an accessor’s return target value obtained by calling the accessor’s MethodHandle#invoke(Object…) method.
protected java.lang.invoke.MethodHandle	getAccessor()
static java.lang.Class<?>	getAccessorType(java.lang.Object target, java.lang.String fieldName) Gets the buildAccessorWithLikelyPrefixes(Object, String) MethodHandle.type()
java.lang.Class<F>	getDeclaredFieldType()
java.lang.String	getFieldName()
java.lang.Class<?>	getFieldType()
protected java.lang.invoke.MethodHandle	getSetter()
T	getTarget()
static boolean	hasDefault(java.lang.Class<?> clazz) Determines if a Class has a default value designated
boolean	hasDefaultDerived()
F	setDerivedValueFromAccessor() Sets the derived value from #deriveValueFromAccessor() using getSetter()
void	setTarget(T target) Binds a new target to the BeanPathAdapter.FieldHandle
protected void	updateMethodHandles() Updates the getAccessor() and getSetter() using the current getTarget() and getFieldName().
static <VT> VT	valueOf(java.lang.Class<VT> valueOfClass, java.lang.Object value) Attempts to invoke a <code>valueOf</code> using the specified class
F	valueOf(java.lang.String value) Attempts to invoke a <code>valueOf</code> using the getDeclaredFieldType() class

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FieldHandle

protected FieldHandle(T target,
                      java.lang.String fieldName,
                      java.lang.Class<F> declaredFieldType)

Constructor

Parameters:

target - the getTarget() for the MethodHandles

fieldName - the field name defined in the getTarget()

declaredFieldType - the declared field type for the getFieldName()

Method Detail

updateMethodHandles

protected void updateMethodHandles()

Updates the getAccessor() and getSetter() using the current getTarget() and getFieldName(). MethodHandles are immutable so new ones are created.

getAccessorType

public static java.lang.Class<?> getAccessorType(java.lang.Object target,
                                                 java.lang.String fieldName)

Gets the buildAccessorWithLikelyPrefixes(Object, String) MethodHandle.type()

Parameters:

target - the accessor target

fieldName - the field name of the target

Returns:

the accessor return type

buildAccessorWithLikelyPrefixes

protected static java.lang.invoke.MethodHandle buildAccessorWithLikelyPrefixes(java.lang.Object target,
                                                                               java.lang.String fieldName)

Attempts to build a MethodHandle accessor for the field name using common prefixes used for methods to access a field

Parameters:

target - the target object that the accessor is for

fieldName - the field name that the accessor is for

Returns:

the accessor MethodHandle

buildAccessor

protected static java.lang.invoke.MethodHandle buildAccessor(java.lang.Object target,
                                                             java.lang.String fieldName,
                                                             java.lang.String... fieldNamePrefix)

Attempts to build a MethodHandle accessor for the field name using common prefixes used for methods to access a field

Parameters:

target - the target object that the accessor is for

fieldName - the field name that the accessor is for

fieldNamePrefix - the prefix of the method for the field name

Returns:

the accessor MethodHandle

buildSetter

protected static java.lang.invoke.MethodHandle buildSetter(java.lang.invoke.MethodHandle accessor,
                                                           java.lang.Object target,
                                                           java.lang.String fieldName)

Builds a setter MethodHandle

Parameters:

accessor - the field’s accesssor that will be used as the parameter type for the setter

target - the target object that the setter is for

fieldName - the field name that the setter is for

Returns:

the setter MethodHandle

valueOf

public F valueOf(java.lang.String value)

Attempts to invoke a <code>valueOf</code> using the getDeclaredFieldType() class

Parameters:

value - the value to invoke the <code>valueOf</code> method on

Returns:

the result (null if the operation fails)

valueOf

public static <VT> VT valueOf(java.lang.Class<VT> valueOfClass,
                              java.lang.Object value)

Attempts to invoke a <code>valueOf</code> using the specified class

Parameters:

valueOfClass - the class to attempt to invoke a <code>valueOf</code> method on

value - the value to invoke the <code>valueOf</code> method on

Returns:

the result (null if the operation fails)

hasDefault

public static boolean hasDefault(java.lang.Class<?> clazz)

Determines if a Class has a default value designated

Parameters:

clazz - the Class to check

Returns:

true when a Class has a default value designated for it

defaultValue

public F defaultValue()

Gets a default value for the getDeclaredFieldType()

Returns:

the default value

defaultValue

public static <VT> VT defaultValue(java.lang.Class<VT> clazz)

Gets a default value for the specified class

Parameters:

clazz - the class

Returns:

the default value

buildMethodName

protected static java.lang.String buildMethodName(java.lang.String prefix,
                                                  java.lang.String fieldName)

Builds a method name using a prefix and a field name

Parameters:

prefix - the method’s prefix

fieldName - the method’s field name

Returns:

the method name

setDerivedValueFromAccessor

public F setDerivedValueFromAccessor()

Sets the derived value from #deriveValueFromAccessor() using getSetter()

Returns:

the accessor’s return target value

See Also:

#deriveValueFromAccessor()

deriveValueFromAccessor

protected F deriveValueFromAccessor(boolean isNullable)

Gets an accessor’s return target value obtained by calling the accessor’s MethodHandle#invoke(Object…) method. When the value returned is <code>null</code> an attempt will be made to instantiate it using either by using a default value from DFLTS (for primatives) or Class.newInstance() on the accessor’s MethodType.returnType() method.

Returns:

the accessor’s return target value

setTarget

public void setTarget(T target)

Binds a new target to the BeanPathAdapter.FieldHandle

Parameters:

target - the target to bind to

getTarget

public T getTarget()

getFieldName

public java.lang.String getFieldName()

getAccessor

protected java.lang.invoke.MethodHandle getAccessor()

Returns:

the getter

getSetter

protected java.lang.invoke.MethodHandle getSetter()

Returns:

the setter

getDeclaredFieldType

public java.lang.Class<F> getDeclaredFieldType()

Returns:

the declared field type of the property value

getFieldType

public java.lang.Class<?> getFieldType()

Returns:

the field type from getAccessor() of the property value

hasDefaultDerived

public boolean hasDefaultDerived()

Returns:

true if a default value has been derived