net.corda.core.node.services.vault

Class QueryCriteriaUtils

net.corda.core.node.services.vault.QueryCriteriaUtils

public class QueryCriteriaUtils

Field Detail

DEFAULT_PAGE_NUM

public static int DEFAULT_PAGE_NUM

Pagination and Ordering

Provide simple ability to specify an offset within a result set and the number of results to return from that offset (eg. page size) together with (optional) sorting criteria at column level.

Note: it is the responsibility of the calling client to manage page windows.

For advanced pagination it is recommended you utilise standard JPA query frameworks such as Spring Data's JPARepository which extends the PagingAndSortingRepository interface to provide paging and sorting capability: https://docs.spring.io/spring-data/commons/docs/current/api/org/springframework/data/repository/PagingAndSortingRepository.html

See Also:

PagingAndSortingRepository, Constant Field Values

DEFAULT_PAGE_SIZE

public static int DEFAULT_PAGE_SIZE

See Also:

Constant Field Values

MAX_PAGE_SIZE

public static int MAX_PAGE_SIZE

Note: use class PageSpecification to correctly handle a number of bounded pages of a pre-configured page size.

See Also:

class PageSpecification, Constant Field Values

Constructor Detail

QueryCriteriaUtils

public QueryCriteriaUtils()

Method Detail

resolveEnclosingObjectFromExpression

@NotNull
public static <O,R> java.lang.Class<O> resolveEnclosingObjectFromExpression(@NotNull
                                                                                     CriteriaExpression<O,? extends R> expression)

resolveEnclosingObjectFromColumn

@NotNull
public static <O,C> java.lang.Class<O> resolveEnclosingObjectFromColumn(@NotNull
                                                                                 Column<O,? extends C> column)

getColumnName

@NotNull
public static <O,C> java.lang.String getColumnName(@NotNull
                                                            Column<O,? extends C> column)

builder

public static <A> A builder(@NotNull
                            kotlin.jvm.functions.Function1<? super net.corda.core.node.services.vault.Builder,? extends A> block)

getField

@NotNull
public static FieldInfo getField(@NotNull
                                          java.lang.String fieldName,
                                          @NotNull
                                          java.lang.Class<?> entityClass)

Returns a class FieldInfo for field with name fieldName in entityClass.

Parameters:

fieldName - name of the field

entityClass - JPA entity class containing the field

Throws:

NoSuchFieldException - if no field with name fieldName is found in the class hierarchy of entityClass

See Also:

class FieldInfo, fieldName, entityClass