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/validator/MaxValidator.java package shared; import org.hibernate.mapping.Property; import org.hibernate.validator.PropertyConstraint; import org.hibernate.validator.Validator; public class MaxValidator implements Validator<Max>, PropertyConstraint { double max; //part of the Validator<Annotation> contract, //allows to get and use the annotation values public void initialize(Max parameters) { max = parameters.value(); } //part of the property constraint contract public boolean isValid(Object value) { if (value==null) return true; if ( value instanceof Number) { double valueRead = ((Number) value).doubleValue(); return valueRead <= max; } return false; } public void apply(Property arg0) { } }

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