org.hibernate.validator.internal.constraintvalidators.MinValidatorForNumber Maven / Gradle / Ivy
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
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*/
package org.hibernate.validator.internal.constraintvalidators;
import java.math.BigDecimal;
import java.math.BigInteger;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.Min;
/**
* Check that the number being validated is greater than or equal to the minimum
* value specified.
*
* @author Alaa Nassef
* @author Hardy Ferentschik
*/
public class MinValidatorForNumber implements ConstraintValidator {
private long minValue;
public void initialize(Min minValue) {
this.minValue = minValue.value();
}
public boolean isValid(Number value, ConstraintValidatorContext constraintValidatorContext) {
//null values are valid
if ( value == null ) {
return true;
}
if ( value instanceof BigDecimal ) {
return ( ( BigDecimal ) value ).compareTo( BigDecimal.valueOf( minValue ) ) != -1;
}
else if ( value instanceof BigInteger ) {
return ( ( BigInteger ) value ).compareTo( BigInteger.valueOf( minValue ) ) != -1;
}
else {
long longValue = value.longValue();
return longValue >= minValue;
}
}
}