org.eclipse.persistence.jpa.rs.features.paging

Class PageableFieldValidator

java.lang.Object

org.eclipse.persistence.jpa.rs.features.paging.PageableFieldValidator

public final class PageableFieldValidator
extends java.lang.Object

Finds out if an entity field is pageable and validates paging parameters.

Author:

Dmitry Kornilov

Constructor Summary

Constructors

Constructor and Description
PageableFieldValidator(java.lang.Class entityClass, java.lang.String fieldName, javax.ws.rs.core.UriInfo uri) Creates the validator.

Method Summary

Modifier and Type	Method and Description
int	getLimit() Returns a value of Limit paging parameter.
int	getOffset() Returns a value of Offset paging parameter.
boolean	isFeatureApplicable() Checks if request is valid.

Methods inherited from class java.lang.Object

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

Constructor Detail

PageableFieldValidator

public PageableFieldValidator(java.lang.Class entityClass,
                              java.lang.String fieldName,
                              javax.ws.rs.core.UriInfo uri)

Creates the validator.

Parameters:

entityClass - entity class containing a field to validate.

fieldName - field name to validate.

uri - request URI.

Method Detail

isFeatureApplicable

public boolean isFeatureApplicable()
                            throws JPARSException

Checks if request is valid.

Returns:

true if request is valid and supports pagination, false if request is valid but doesn't support pagination.

Throws:

JPARSException - in case of any validation errors.

getOffset

public int getOffset()

Returns a value of Offset paging parameter. The value is available only after calling checkParameters method.

Returns:

the Offset value.

getLimit

public int getLimit()

Returns a value of Limit paging parameter. The value is available only after calling checkParameters method.

Returns:

the Limit value.