getParameters() - JPA Query's method

Set<Parameter<?>> getParameters()

Get the parameter objects corresponding to the declared parameters of the query. Returns empty set if the query has no parameters. This method is not required to be supported for native queries.
set of the parameter objects
IllegalStateException - if invoked on a native query when the implementation does not support this use
JPA 2.0

This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
ObjectDB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.