org.codehaus.groovy.runtime.CurriedClosure<V>

All Implemented Interfaces:: GroovyCallable<V>, GroovyObject, Serializable, Cloneable, Runnable, Callable<V>

public final class CurriedClosure<V>
extends Closure<V>

A wrapper for Closure to support currying. Normally used only internally through the curry(), rcurry() or ncurry() methods on Closure. Typical usages:

 // normal usage
 def unitAdder = { first, second, unit -> "${first + second} $unit" }
 assert unitAdder(10, 15, "minutes") == "25 minutes"
 assert unitAdder.curry(60)(15, "minutes") == "75 minutes"
 def minuteAdder = unitAdder.rcurry("minutes")
 assert minuteAdder(15, 60) == "75 minutes"

 // explicit creation
 import org.codehaus.groovy.runtime.CurriedClosure
 assert new CurriedClosure(unitAdder, 45)(15, "minutes") == "60 minutes"
 assert new CurriedClosure(unitAdder, "six", "ty")("minutes") == "sixty minutes"

Notes:

Caters for Groovy's lazy (rcurry) and eager (ncurry) calculation of argument position

See Also:: Serialized Form

Field Summary

Fields inherited from class groovy.lang.Closure
DELEGATE_FIRST, DELEGATE_ONLY, DONE, IDENTITY, maximumNumberOfParameters, OWNER_FIRST, OWNER_ONLY, parameterTypes, SKIP, TO_SELF

Constructor Summary

Constructors
Constructor	Description
`CurriedClosure(int index, Closure<V> uncurriedClosure, Object... arguments)`	Creates the curried closure.
`CurriedClosure(Closure<V> uncurriedClosure, Object... arguments)`

Method Summary

Modifier and Type	Method	Description
`Object`	`clone()`
`Object`	`getDelegate()`
`Class[]`	`getParameterTypes()`
`int`	`getResolveStrategy()`	Gets the strategy which the closure uses to resolve methods and properties
`Object[]`	`getUncurriedArguments(Object... arguments)`
`void`	`setDelegate(Object delegate)`	Allows the delegate to be changed such as when performing markup building
`void`	`setResolveStrategy(int resolveStrategy)`	Sets the strategy which the closure uses to resolve property references and methods.

Methods inherited from class groovy.lang.Closure

andThen, andThenSelf, andThenSelf, asWritable, call, call, call, compose, composeSelf, composeSelf, curry, curry, dehydrate, getDirective, getMaximumNumberOfParameters, getOwner, getProperty, getThisObject, isCase, leftShift, leftShift, memoize, memoizeAtLeast, memoizeAtMost, memoizeBetween, ncurry, ncurry, rcurry, rcurry, rehydrate, rightShift, run, setDirective, setProperty, throwRuntimeException, trampoline, trampoline

Methods inherited from class groovy.lang.GroovyObjectSupport

getMetaClass, setMetaClass

Methods inherited from class java.lang.Object

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

Methods inherited from interface groovy.lang.GroovyObject

invokeMethod

Constructor Details
- CurriedClosure
  
  public CurriedClosure(int index, Closure<V> uncurriedClosure, Object... arguments)
  
  Creates the curried closure.
  
  Parameters:
  
  index - the position where the parameters should be injected (-ve for lazy)
  
  uncurriedClosure - the closure to be called after the curried parameters are injected
  
  arguments - the supplied parameters
- CurriedClosure
  
  public CurriedClosure(Closure<V> uncurriedClosure, Object... arguments)
Method Details
- getUncurriedArguments
  
  public Object[] getUncurriedArguments(Object... arguments)
- setDelegate
  
  public void setDelegate(Object delegate)
  
  Description copied from class: Closure
  
  Allows the delegate to be changed such as when performing markup building
  
  Overrides:
  
  setDelegate in class Closure<V>
  
  Parameters:
  
  delegate - the new delegate
- getDelegate
  
  public Object getDelegate()
  
  Overrides:
  
  getDelegate in class Closure<V>
  
  Returns:
  
  the delegate Object to which method calls will go which is typically the outer class when the closure is constructed
- setResolveStrategy
  
  public void setResolveStrategy(int resolveStrategy)
  
  Description copied from class: Closure
  
  Sets the strategy which the closure uses to resolve property references and methods. The default is Closure.OWNER_FIRST
  
  Overrides:
  
  setResolveStrategy in class Closure<V>
  
  Parameters:
  
  resolveStrategy - The resolve strategy to set
  
  See Also:
  
  Closure.DELEGATE_FIRST, Closure.DELEGATE_ONLY, Closure.OWNER_FIRST, Closure.OWNER_ONLY, Closure.TO_SELF
- getResolveStrategy
  
  public int getResolveStrategy()
  
  Description copied from class: Closure
  
  Gets the strategy which the closure uses to resolve methods and properties
  
  Overrides:
  
  getResolveStrategy in class Closure<V>
  
  Returns:
  
  The resolve strategy
  
  See Also:
  
  Closure.DELEGATE_FIRST, Closure.DELEGATE_ONLY, Closure.OWNER_FIRST, Closure.OWNER_ONLY, Closure.TO_SELF
- clone
  
  public Object clone()
  
  Overrides:
  
  clone in class Closure<V>
- getParameterTypes
  
  public Class[] getParameterTypes()
  
  Overrides:
  
  getParameterTypes in class Closure<V>
  
  Returns:
  
  the parameter types of the longest doCall method of this closure

Class CurriedClosure<V>

Field Summary

Fields inherited from class groovy.lang.Closure