Type Parameters:

T - type to extract from

All Superinterfaces:

Comparator<T>, Expression<T>, Function<T,BigDecimal>, HasCompare<T>, HasCompose<T>, HasHash<T>, ToNullable<T,BigDecimal,ToBigDecimal<T>>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface ToBigDecimalNullable<T>
extends Expression<T>, ToNullable<T,BigDecimal,ToBigDecimal<T>>, HasHash<T>, HasCompare<T>, HasCompose<T>
```
Expression that given an entity returns a nullable BigDecimal value. This expression can be implemented using a lambda, or it can be a result of another operation. It has additional methods for operating on it.

Since:

3.1.0

Author:

Per Minborg

See Also:

Function

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`BigDecimal`	`apply(T object)`
`default int`	`compare(T first, T second)`
`default <V> ToBigDecimalNullable<V>`	`compose(Function<? super V,? extends T> before)`	Returns a composed expression that first applies the `before` function to its input, and then applies this function to the result.
`default ExpressionType`	`expressionType()`	Returns the expression type of this expression.
`default long`	`hash(T object)`	Hash the specified object into a 64-bit hash.
`static <T> ToBigDecimalNullable<T>`	`of(Function<T,BigDecimal> lambda)`	Returns a typed `ToBigDecimalNullable<T>` using the provided `lambda`.
`default ToBigDecimal<T>`	`orElse(BigDecimal value)`	Returns an equivalent expression as this, except that it will return the `value` if given an argument that would cause this expression to return `null`.
`default ToBigDecimal<T>`	`orElseGet(ToBigDecimal<T> getter)`	Returns an equivalent expression as this, except that it will return the `getter` expression if given an argument that would cause this expression to return `null`.
`default ToBigDecimal<T>`	`orThrow()`	Returns an equivalent expression as this, except that it will throw a `NullPointerException` if given an argument that would cause this expression to return `null`.

Methods inherited from interface java.util.Comparator
equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Methods inherited from interface java.util.function.Function
andThen

Methods inherited from interface com.speedment.runtime.compute.trait.ToNullable
isNotNull, isNotNull, isNull, isNull

- Method Detail
  - of
```
static <T> ToBigDecimalNullable<T> of(Function<T,BigDecimal> lambda)
```
    Returns a typed ToBigDecimalNullable<T> using the provided lambda.
    
    Type Parameters:
    
    T - type to extract from
    
    Parameters:
    
    lambda - to convert
    
    Returns:
    
    a typed ToBigDecimalNullable<T> using the provided lambda
    
    Throws:
    
    NullPointerException - if the provided lambda is null
  - apply
```
BigDecimal apply(T object)
```
    Specified by:
    
    apply in interface Function<T,BigDecimal>
  - expressionType
```
default ExpressionType expressionType()
```
    Description copied from interface: Expression
    
    Returns the expression type of this expression. It should be safe to cast this instance into the corresponding interface.
    
    Specified by:
    
    expressionType in interface Expression<T>
    
    Returns:
    
    the expression type
  - orThrow
```
default ToBigDecimal<T> orThrow()
```
    Description copied from interface: ToNullable
    
    Returns an equivalent expression as this, except that it will throw a NullPointerException if given an argument that would cause this expression to return null.
    
    Specified by:
    
    orThrow in interface ToNullable<T,BigDecimal,ToBigDecimal<T>>
    
    Returns:
    
    the expression if present
  - orElseGet
```
default ToBigDecimal<T> orElseGet(ToBigDecimal<T> getter)
```
    Description copied from interface: ToNullable
    
    Returns an equivalent expression as this, except that it will return the getter expression if given an argument that would cause this expression to return null.
    
    Specified by:
    
    orElseGet in interface ToNullable<T,BigDecimal,ToBigDecimal<T>>
    
    Parameters:
    
    getter - to apply if null
    
    Returns:
    
    the expression if present, otherwise return getter
  - orElse
```
default ToBigDecimal<T> orElse(BigDecimal value)
```
    Description copied from interface: ToNullable
    
    Returns an equivalent expression as this, except that it will return the value if given an argument that would cause this expression to return null.
    
    Specified by:
    
    orElse in interface ToNullable<T,BigDecimal,ToBigDecimal<T>>
    
    Parameters:
    
    value - value to use if null
    
    Returns:
    
    the expression if present, otherwise return value
  - hash
```
default long hash(T object)
```
    Description copied from interface: HasHash
    
    Hash the specified object into a 64-bit hash. If two equal objects are hashed, they must always result in the same hash. However, objects that are not equal may also result in the same hash.
    
    Specified by:
    
    hash in interface HasHash<T>
    
    Parameters:
    
    object - the object to hash
    
    Returns:
    
    the 64-bit hashcode
  - compare
```
default int compare(T first,
                    T second)
```
    Specified by:
    
    compare in interface Comparator<T>
    
    Specified by:
    
    compare in interface HasCompare<T>
  - compose
```
default <V> ToBigDecimalNullable<V> compose(Function<? super V,? extends T> before)
```
    Description copied from interface: HasCompose
    
    Returns a composed expression that first applies the before function to its input, and then applies this function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.
    
    Specified by:
    
    compose in interface Function<T,BigDecimal>
    
    Specified by:
    
    compose in interface HasCompose<T>
    
    Type Parameters:
    
    V - the type of input to the before function, and to the composed expression
    
    Parameters:
    
    before - the function to apply before this function is applied
    
    Returns:
    
    a composed function that first applies the before function and then applies this function

Interface ToBigDecimalNullable<T>

Method Summary

Methods inherited from interface java.util.Comparator

Methods inherited from interface java.util.function.Function

Methods inherited from interface com.speedment.runtime.compute.trait.ToNullable

Method Detail

of

apply

expressionType

orThrow

orElseGet

orElse

hash

compare

compose