com.aol.cyclops.internal.comprehensions

Class ComprehensionsModule.ComprehensionData<T,R,V extends ComprehensionsModule.Initialisable>

java.lang.Object

com.aol.cyclops.internal.comprehensions.ComprehensionsModule.ComprehensionData<T,R,V>

Type Parameters:

T - Variable type

R - Return type

V - Aggregate Variable type holder

Enclosing interface:

ComprehensionsModule

public static class ComprehensionsModule.ComprehensionData<T,R,V extends ComprehensionsModule.Initialisable>
extends java.lang.Object

Class that collects data for free form for comprehensions

Method Summary

Modifier and Type	Method and Description
<T> T	$(java.lang.String name) Extract a bound variable
<T> ComprehensionsModule.ComprehensionData<T,R,V>	$(java.lang.String name, java.lang.Object f) Bind a variable in this for comprehension
<T> ComprehensionsModule.ComprehensionData<T,R,V>	$(java.lang.String name, java.util.function.Supplier f) Lazily bind a variable in this for comprehension
ComprehensionsModule.ComprehensionData<T,R,V>	filter(java.util.function.Supplier<java.lang.Boolean> s) Add a guard to the for comprehension
<R> R	yield(java.util.function.Supplier s) Define the yeild section of a for comprehension and kick of processing for a comprehension

Methods inherited from class java.lang.Object

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

Method Detail

filter

public ComprehensionsModule.ComprehensionData<T,R,V> filter(java.util.function.Supplier<java.lang.Boolean> s)

Add a guard to the for comprehension

 
  	foreachX(c -> c.$("hello",list)
							   .filter(()->c.<Integer>$("hello")<10)
								.yield(()-> c.<Integer>$("hello")+2));
			  
 

Parameters:

s - Supplier that returns true for elements that should stay in the comprehension

Returns:

this

yield

public <R> R yield(java.util.function.Supplier s)

Define the yeild section of a for comprehension and kick of processing for a comprehension

 
  	foreachX(c -> c.$("hello",list)
							   .filter(()->c.<Integer>$("hello")<10)
								.yield(()-> c.<Integer>$("hello")+2));
			  
 

Parameters:

s - Yield section

Returns:

result of for comprehension

$

public <T> T $(java.lang.String name)

Extract a bound variable

 
  	foreachX(c -> c.$("hello",list)
							   .filter(()->c.<Integer>$("hello")<10)
								.yield(()-> c.<Integer>$("hello")+2));
			  
 

Parameters:

name - Variable name

Returns:

variable value

$

public <T> ComprehensionsModule.ComprehensionData<T,R,V> $(java.lang.String name,
                                                           java.lang.Object f)

Bind a variable in this for comprehension

 
  	foreachX(c -> c.$("hello",list)
							   .filter(()->c.<Integer>$("hello")<10)
								.yield(()-> c.<Integer>$("hello")+2));
			  
 

Parameters:

name - of variable to bind

f - value

Returns:

this

$

public <T> ComprehensionsModule.ComprehensionData<T,R,V> $(java.lang.String name,
                                                           java.util.function.Supplier f)

Lazily bind a variable in this for comprehension

 
  	foreachX(c -> c.$("hello",list)
							   .filter(()->c.<Integer>$("hello")<10)
								.yield(()-> c.<Integer>$("hello")+2));
			  
 

Parameters:

name - name of variable to bind

f - value

Returns:

this