com.weedow.spring.data.search.join.handler

Class FetchingAllEntityJoinHandler<T>

com.weedow.spring.data.search.join.handler.FetchingAllEntityJoinHandler<T>

All Implemented Interfaces:

EntityJoinHandler<T>

public class FetchingAllEntityJoinHandler<T>
implements EntityJoinHandler<T>

interface EntityJoinHandler implementation to fetch all fields (entity fields and nested fields included) with any Join Annotation.

Technically, it creates a LEFT JOIN FETCH in JPQL.

Example: A has a relationship with B and B has a relationship with C.When we search for A, we retrieve A with data from B and C.

See Also:

interface EntityJoinHandler

Constructor Detail

FetchingAllEntityJoinHandler

public FetchingAllEntityJoinHandler()

interface EntityJoinHandler implementation to fetch all fields (entity fields and nested fields included) with any Join Annotation.

Technically, it creates a LEFT JOIN FETCH in JPQL.

Example: A has a relationship with B and B has a relationship with C.When we search for A, we retrieve A with data from B and C.

See Also:

interface EntityJoinHandler

Method Detail

supports

public boolean supports(@NotNull
                        java.lang.Class<?> entityClass,
                        @NotNull
                        java.lang.Class<?> fieldClass,
                        @NotNull
                        java.lang.String fieldName,
                        @NotNull
                        java.lang.annotation.Annotation joinAnnotation)

Checks if the given arguments are supported by this EntityJoinHandler.

• If the method returns true, the handle method will be called.

• If the method returns false, the handle method will not be called.

Parameters:

entityClass - Class of the Entity bean

fieldClass - Class of the Field present on the Entity

fieldName - Name of the Field

joinAnnotation - Join Annotation present on the Entity Field

Returns:

true if the EntityJoinHandler can handle join for these arguments

See Also:

handle, handle

handle

@NotNull
public JoinInfo handle(@NotNull
                                java.lang.Class<?> entityClass,
                                @NotNull
                                java.lang.Class<?> fieldClass,
                                @NotNull
                                java.lang.String fieldName,
                                @NotNull
                                java.lang.annotation.Annotation joinAnnotation)

Handles the join type for the given arguments.

Parameters:

entityClass - Class of the Entity bean

fieldClass - Class of the Field present on the Entity

fieldName - Name of the Field

joinAnnotation - Join Annotation present on the Entity Field

Returns:

class JoinInfo