org.bitbucket.gt_tech.spring.data.querydsl.value.operators.experimental

Class QuerydslPredicateArgumentResolverBeanPostProcessor

java.lang.Object

org.bitbucket.gt_tech.spring.data.querydsl.value.operators.experimental.QuerydslPredicateArgumentResolverBeanPostProcessor

All Implemented Interfaces:

org.springframework.beans.factory.config.BeanPostProcessor

public class QuerydslPredicateArgumentResolverBeanPostProcessor
extends Object
implements org.springframework.beans.factory.config.BeanPostProcessor

Advanced experimental feature of this component - an implementation of BeanPostProcessor that overrides the default QuerydslPredicateArgumentResolver by providing it a no-op ConversionService and in-turn disabling it's strong type-conversion. This allows for String values decorated with value-operators by client to reach expression-provided even for non StringPath.

Note that by providing a delegate ConversionService and explicit Class types for delegated conversions, a high degree of control can be achieved when users are using direct bindings for certain fields (for e.g. Date)

If this isn't available, then the QuerydslPredicateArgumentResolver will attempt to perform type-conversion which will fail for non-StringPath (for. e.g. EnumPath) when values are decorated with value-operators - Operator

Author:

gt_tech

Constructor Summary

Constructors

Constructor and Description
QuerydslPredicateArgumentResolverBeanPostProcessor(org.springframework.data.querydsl.binding.QuerydslBindingsFactory querydslBindingsFactory) Constructor: Replaces QuerydslPredicateArgumentResolver with a no-op conversion service
QuerydslPredicateArgumentResolverBeanPostProcessor(org.springframework.data.querydsl.binding.QuerydslBindingsFactory querydslBindingsFactory, org.springframework.core.convert.ConversionService conversionServiceDelegate) Constructor: Replaces QuerydslPredicateArgumentResolver with a no-op conversion service with the exception of following types conversion that would be handed over to provided delegated service - Date, LocalDate, Timestamp
QuerydslPredicateArgumentResolverBeanPostProcessor(org.springframework.data.querydsl.binding.QuerydslBindingsFactory querydslBindingsFactory, org.springframework.core.convert.ConversionService conversionServiceDelegate, Class[] delegatedConversions)

Method Summary

Modifier and Type	Method and Description
Object	postProcessAfterInitialization(Object bean, String beanName)
Object	postProcessBeforeInitialization(Object bean, String beanName) Implementing default method as-is since Spring Boot 1.5.x specific dependencies don't have default methods so if library users use this with an older spring, the runtime would fail.

Methods inherited from class java.lang.Object

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

Constructor Detail

QuerydslPredicateArgumentResolverBeanPostProcessor

public QuerydslPredicateArgumentResolverBeanPostProcessor(org.springframework.data.querydsl.binding.QuerydslBindingsFactory querydslBindingsFactory)

Constructor: Replaces QuerydslPredicateArgumentResolver with a no-op conversion service

Parameters:

querydslBindingsFactory -

QuerydslPredicateArgumentResolverBeanPostProcessor

public QuerydslPredicateArgumentResolverBeanPostProcessor(org.springframework.data.querydsl.binding.QuerydslBindingsFactory querydslBindingsFactory,
                                                          org.springframework.core.convert.ConversionService conversionServiceDelegate)

Constructor: Replaces QuerydslPredicateArgumentResolver with a no-op conversion service with the exception of following types conversion that would be handed over to provided delegated service - Date, LocalDate, Timestamp

Parameters:

querydslBindingsFactory -

QuerydslPredicateArgumentResolverBeanPostProcessor

public QuerydslPredicateArgumentResolverBeanPostProcessor(org.springframework.data.querydsl.binding.QuerydslBindingsFactory querydslBindingsFactory,
                                                          org.springframework.core.convert.ConversionService conversionServiceDelegate,
                                                          Class[] delegatedConversions)

Method Detail

postProcessAfterInitialization

public Object postProcessAfterInitialization(Object bean,
                                             String beanName)
                                      throws org.springframework.beans.BeansException

Specified by:

postProcessAfterInitialization in interface org.springframework.beans.factory.config.BeanPostProcessor

Throws:

org.springframework.beans.BeansException

postProcessBeforeInitialization

public Object postProcessBeforeInitialization(Object bean,
                                              String beanName)
                                       throws org.springframework.beans.BeansException

Implementing default method as-is since Spring Boot 1.5.x specific dependencies don't have default methods so if library users use this with an older spring, the runtime would fail. This is implemented as a fail-safe mechanism.

Specified by:

postProcessBeforeInitialization in interface org.springframework.beans.factory.config.BeanPostProcessor

Throws:

org.springframework.beans.BeansException