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Library to make PostgreSQL stored procedures available through simple Java "*SProcService" interfaces including automatic object serialization and deserialization (using typemapper and convention-over-configuration). Supports sharding, advisory locking, statement timeouts and PostgreSQL types such as enums and hstore.

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package de.zalando.sprocwrapper.validation;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.NotNull;

public class NotNullValidator implements ConstraintValidator {

    public void initialize(final NotNull parameters) { }

    public boolean isValid(final Object object, final ConstraintValidatorContext constraintValidatorContext) {
        return object != null;
    }

}