/*
* Copyright 2002-2008 the original author or authors.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.validation;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
/**
* Encapsulates a field error, that is, a reason for rejecting a specific
* field value.
*
* <p>See the {@link DefaultMessageCodesResolver} javadoc for details on
* how a message code list is built for a <code>FieldError</code>.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @since 10.03.2003
* @see DefaultMessageCodesResolver
*/
public class FieldError extends ObjectError {
private final String field;
private final Object rejectedValue;
private final boolean bindingFailure;
/**
* Create a new FieldError instance.
* @param objectName the name of the affected object
* @param field the affected field of the object
* @param defaultMessage the default message to be used to resolve this message
*/
public FieldError(String objectName, String field, String defaultMessage) {
this(objectName, field, null, false, null, null, defaultMessage);
}
/**
* Create a new FieldError instance.
* @param objectName the name of the affected object
* @param field the affected field of the object
* @param rejectedValue the rejected field value
* @param bindingFailure whether this error represents a binding failure
* (like a type mismatch); else, it is a validation failure
* @param codes the codes to be used to resolve this message
* @param arguments the array of arguments to be used to resolve this message
* @param defaultMessage the default message to be used to resolve this message
*/
public FieldError(
String objectName, String field, Object rejectedValue, boolean bindingFailure,
String[] codes, Object[] arguments, String defaultMessage) {
super(objectName, codes, arguments, defaultMessage);
Assert.notNull(field, "Field must not be null");
this.field = field;
this.rejectedValue = rejectedValue;
this.bindingFailure = bindingFailure;
}
/**
* Return the affected field of the object.
*/
public String getField() {
return this.field;
}
/**
* Return the rejected field value.
*/
public Object getRejectedValue() {
return this.rejectedValue;
}
/**
* Return whether this error represents a binding failure
* (like a type mismatch); otherwise it is a validation failure.
*/
public boolean isBindingFailure() {
return this.bindingFailure;
}
@Override
public String toString() {
return "Field error in object '" + getObjectName() + "' on field '" + this.field +
"': rejected value [" + this.rejectedValue + "]; " + resolvableToString();
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!super.equals(other)) {
return false;
}
FieldError otherError = (FieldError) other;
return getField().equals(otherError.getField()) &&
ObjectUtils.nullSafeEquals(getRejectedValue(), otherError.getRejectedValue()) &&
isBindingFailure() == otherError.isBindingFailure();
}
@Override
public int hashCode() {
int hashCode = super.hashCode();
hashCode = 29 * hashCode + getField().hashCode();
hashCode = 29 * hashCode + ObjectUtils.nullSafeHashCode(getRejectedValue());
hashCode = 29 * hashCode + (isBindingFailure() ? 1 : 0);
return hashCode;
}
}
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