com.speedment.runtime.compute.expression

Interface NonNullableExpression<T,INNER extends Expression<T>>

Type Parameters:

T - the input entity type

INNER - the type of the inner expression

All Superinterfaces:

Expression<T>

All Known Subinterfaces:

OrElseGetExpression<T,INNER,DEFAULT>, OrElseThrowExpression<T,INNER>, ToBigDecimalOrElse<T>, ToBigDecimalOrElseGet<T>, ToBigDecimalOrThrow<T>, ToBooleanOrElse<T>, ToBooleanOrElseGet<T>, ToBooleanOrThrow<T>, ToByteOrElse<T>, ToByteOrElseGet<T>, ToByteOrThrow<T>, ToCharOrElse<T>, ToCharOrElseGet<T>, ToCharOrThrow<T>, ToDoubleOrElse<T>, ToDoubleOrElseGet<T>, ToDoubleOrThrow<T>, ToEnumOrElse<T,E>, ToEnumOrElseGet<T,E>, ToEnumOrThrow<T,E>, ToFloatOrElse<T>, ToFloatOrElseGet<T>, ToFloatOrThrow<T>, ToIntOrElse<T>, ToIntOrElseGet<T>, ToIntOrThrow<T>, ToLongOrElse<T>, ToLongOrElseGet<T>, ToLongOrThrow<T>, ToShortOrElse<T>, ToShortOrElseGet<T>, ToShortOrThrow<T>, ToStringOrElse<T>, ToStringOrElseGet<T>, ToStringOrThrow<T>

public interface NonNullableExpression<T,INNER extends Expression<T>>
extends Expression<T>

Specialized Expression that is not nullable, but that wraps an expression that is and that has some routine for dealing with null values determined by nullStrategy().

Equality is determined by looking at innerNullable() and nullStrategy(), and additionally by the OrElseGetExpression.defaultValueGetter() or the getDefaultValue() if the strategy is NonNullableExpression.NullStrategy.APPLY_DEFAULT_METHOD or NonNullableExpression.NullStrategy.USE_DEFAULT_VALUE respectively.

Since:

3.1.0

Author:

Emil Forslund

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	NonNullableExpression.NullStrategy The strategies possible when dealing with null-values.

Method Summary

Modifier and Type	Method and Description
INNER	innerNullable() Returns the inner nullable expression.
NonNullableExpression.NullStrategy	nullStrategy() Returns the strategy used by this expression to deal with the case when innerNullable() would have returned null.

Methods inherited from interface com.speedment.runtime.compute.expression.Expression

expressionType

Method Detail

innerNullable

INNER innerNullable()

Returns the inner nullable expression.

Returns:

the inner nullable expression

nullStrategy

NonNullableExpression.NullStrategy nullStrategy()

Returns the strategy used by this expression to deal with the case when innerNullable() would have returned null.

Returns:

the null-strategy used