com.github.brunodutr.persistence.criteria.service.CriteriaProcessorIsNull Maven / Gradle / Ivy
package com.github.brunodutr.persistence.criteria.service;
import java.lang.reflect.Field;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
class CriteriaProcessorIsNull implements ICriteriaProcessor {
@Override
public Predicate process(CriteriaBuilder criteriaBuilder, Root root, Object object, Field field) throws Exception {
return processAnnotation(root, object, field, (path, value) -> {
if(value == null) {
return null;
}
if(value instanceof Boolean) {
Boolean isNull = (Boolean) value;
return isNull ? criteriaBuilder.isNull(path) : null;
} else {
throw new UnsupportedOperationException("CriteriaProcessorIsNull funciona apenas para o tipo java.lang.Boolean");
}
});
}
}