/*
* Copyright (c) 2002-2006 by OpenSymphony
* All rights reserved.
*/
package com.opensymphony.xwork2.validator.metadata;
import java.io.PrintWriter;
import java.io.StringWriter;
/**
* <code>ExpressionValidatorDescription</code>
*
* @author Rainer Hermanns
* @version $Id: ExpressionValidatorDescription.java 1833 2008-06-21 09:29:39Z rainerh $
*/
public class ExpressionValidatorDescription implements ValidatorDescription {
public String expression;
public String key;
public String message;
public boolean shortCircuit;
public void setExpression(String expression) {
this.expression = expression;
}
public void setKey(String key) {
this.key = key;
}
public void setMessage(String message) {
this.message = message;
}
public void setShortCircuit(boolean shortCircuit) {
this.shortCircuit = shortCircuit;
}
/**
* Returns the field name to create the validation rule for.
*
* @return The field name to create the validation rule for
*/
public String getFieldName() {
throw new UnsupportedOperationException("ExpressionValidator annotations cannot be applied to fields...");
}
public String asXml() {
StringWriter sw = new StringWriter();
PrintWriter writer = null;
try {
writer = new PrintWriter(sw);
if ( shortCircuit) {
writer.println("\t<validator type=\"expression\">");
} else {
writer.println("\t<validator type=\"expression\" short-circuit=\"true\">");
}
writer.println("\t\t<param name=\"expression\">" + expression+ "</param>");
if ( !"".equals(key)) {
writer.println("\t\t<message key=\"" + key + "\">" + message + "</message>");
} else {
writer.println("\t\t<message>" + message + "</message>");
}
writer.println("\t</validator>");
} finally {
if (writer != null) {
writer.flush();
writer.close();
}
}
return sw.toString();
}
public boolean isSimpleValidator() {
return false;
}
}
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