Interface Product2<_1,_2>
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- Type Parameters:
_1
- The first element type_2
- The second element type
- All Superinterfaces:
java.util.Map.Entry<_1,_2>
- All Known Subinterfaces:
Product3<_1,_2,_3>
,Product4<_1,_2,_3,_4>
,Product5<_1,_2,_3,_4,_5>
,Product6<_1,_2,_3,_4,_5,_6>
,Product7<_1,_2,_3,_4,_5,_6,_7>
,Product8<_1,_2,_3,_4,_5,_6,_7,_8>
public interface Product2<_1,_2> extends java.util.Map.Entry<_1,_2>
The minimal shape of the combination of two potentially distinctly typed values, supporting destructuring via explicitly named indexing methods, as well as via a combining function.For more information, read about products.
- See Also:
Tuple2
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description _1
_1()
Retrieve the first element._2
_2()
Retrieve the second element.default _1
getKey()
default _2
getValue()
default <R> R
into(Fn2<? super _1,? super _2,? extends R> fn)
Destructure and apply this product to a function accepting the same number of arguments as this product's slots.default Product2<_2,_1>
invert()
Rotate the first two slots of this product.static <_1,_2>
Product2<_1,_2>product(_1 _1, _2 _2)
Static factory method for creating a genericProduct2
.default _2
setValue(_2 value)
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Method Detail
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_1
_1 _1()
Retrieve the first element.- Returns:
- the first element
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_2
_2 _2()
Retrieve the second element.- Returns:
- the second element
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into
default <R> R into(Fn2<? super _1,? super _2,? extends R> fn)
Destructure and apply this product to a function accepting the same number of arguments as this product's slots. This can be thought of as a kind of dual to uncurrying a function and applying a product to it.- Type Parameters:
R
- the return type of the function- Parameters:
fn
- the function to apply- Returns:
- the result of applying the destructured product to the function
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invert
default Product2<_2,_1> invert()
Rotate the first two slots of this product.- Returns:
- the rotated product
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