Interface RememberingPropertyExpressionResolver

All Superinterfaces:

PropertyExpressionResolver

All Known Implementing Classes:

RandomPropertyExpressionResolver

@Internal
public interface RememberingPropertyExpressionResolver
extends PropertyExpressionResolver

A PropertyExpressionResolver whose expressions resolve to another value every time, such as random.port, and that remembers what an expression of a property has resolved to.

When PropertySourcePropertyResolver resolves the placeholders of a property, it passes a memory for each expression it resolves: one for the expression at that place of the property's text. The property then keeps the value until the property resolver forgets it, as a refresh does. Where there is no property to remember the value for, the expression is resolved through PropertyExpressionResolver.resolve(PropertyResolver, ConversionService, String, Class), which draws a new value.

Since:

5.2.20

Author:

Radovan Radic

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	RememberingPropertyExpressionResolver.Memory	Where an expression of a property keeps what it has resolved to.

Method Summary

Modifier and Type	Method	Description
<T> Optional<T>	resolve(PropertyResolver propertyResolver, ConversionService conversionService, String expression, Class<T> requiredType, RememberingPropertyExpressionResolver.Memory memory)	Resolve the value for the expression of the specified type, keeping what the expression resolves to in the given memory.

Methods inherited from interface PropertyExpressionResolver

resolve

Method Details

resolve

<T> Optional<T> resolve(PropertyResolver propertyResolver,
 ConversionService conversionService,
 String expression,
 Class<T> requiredType,
 RememberingPropertyExpressionResolver.Memory memory)

Resolve the value for the expression of the specified type, keeping what the expression resolves to in the given memory.

Type Parameters:

T - The type

Parameters:

propertyResolver - The property resolver

conversionService - The conversion service

expression - The expression

requiredType - The required type

memory - The memory of the expression

Returns:

The optional resolved value