Package com.regnosys.rosetta.generator.java.expression

Class TypeCoercionService

java.lang.Object

com.regnosys.rosetta.generator.java.expression.TypeCoercionService

public class TypeCoercionService
extends Object

This service is responsible for coercing an expression from its actual Java type to an `expected` Java type. Both coercions of item types and of wrapper types are supported. Examples of supported coercions: - `Long` to `BigDecimal` - `BigInteger` to `Integer` (will throw a runtime exception if conversion looses information) - `Boolean` to `ComparisonResult` - `ComparisonResult` to `Boolean` - `String` to `MapperS` - `MapperC` to `List` - `MapperC` to `BigDecimal` - `MapperC` to `ComparisonResult` - `Void` to `LocalDate` - `Void` to `MapperC` Item to item coercions and item to wrapper coercions are performed null-safe. This service is auto-boxing aware. If the expected type is a wrapper class of a primitive type and the input expression is of a primitive type as well, the result will be of a primitive type. Terminology: - a "wrapper type" refers to any of the following classes: - `MapperS` - `MapperC` - `ComparisonResult` - `Mapper` (the general interface of the above classes) - `MapperListOfLists` - `List` - an "item type" refers to the type of the items of a wrapper type, or to the type itself if it does not refer to a wrapper type. For a precise definition, see the methods `JavaTypeUtil#isWrapper` and `JavaTypeUtil#getItemType`.

Constructor Summary

Constructors

Constructor	Description
TypeCoercionService()

Method Summary

Modifier and Type	Method	Description
JavaStatementBuilder	addCoercions(JavaExpression expr, JavaType expected, JavaScope scope)
JavaStatementBuilder	addCoercions(JavaStatementBuilder expr, JavaType expected, JavaScope scope)

Methods inherited from class java.lang.Object

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

Constructor Details

TypeCoercionService

public TypeCoercionService()

Method Details

addCoercions

public JavaStatementBuilder addCoercions(JavaStatementBuilder expr,
 JavaType expected,
 JavaScope scope)

addCoercions

public JavaStatementBuilder addCoercions(JavaExpression expr,
 JavaType expected,
 JavaScope scope)