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Commons Attributes example source code file (InvalidAttributeTargetError.java)
The Commons Attributes InvalidAttributeTargetError.java source code
/*
* Copyright 2003-2004 The Apache Software Foundation
*
* 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.apache.commons.attributes;
import java.util.ArrayList;
import java.util.List;
/**
* Thrown when an attribute has a {@link Target} declaration that forbids
* it being applied to the program element it has been applied to.
*
* <p>For example:
*
* <pre>
*
* @since 2.1
*/
public class InvalidAttributeTargetError extends Error {
/**
* Creates a new InvalidAttributeTargetError.
*
* @param attributeClass name of the type of the attribute that was applied to the wrong target.
* @param element the element that the user tried to apply the attribute to.
* @param targetFlags the targets (bitwise OR of the {@link Target}.XXX flags that the attributeClass
* can be applied to.
* @since 2.1
*/
public InvalidAttributeTargetError (String attributeClass, String element, int targetFlags) {
super ("Attributes of type " + attributeClass + " can't be applied to " + element + ". " +
"They can only be applied to: " + flagsToString (targetFlags));
}
private final static String flagsToString (int flags) {
List targetNames = new ArrayList ();
if ((flags & Target.CLASS) > 0) {
targetNames.add ("CLASS");
}
if ((flags & Target.FIELD) > 0) {
targetNames.add ("FIELD");
}
if ((flags & Target.METHOD) > 0) {
targetNames.add ("METHOD");
}
if ((flags & Target.CONSTRUCTOR) > 0) {
targetNames.add ("CONSTRUCTOR");
}
if ((flags & Target.METHOD_PARAMETER) > 0) {
targetNames.add ("METHOD_PARAMETER");
}
if ((flags & Target.CONSTRUCTOR_PARAMETER) > 0) {
targetNames.add ("CONSTRUCTOR_PARAMETER");
}
if ((flags & Target.RETURN) > 0) {
targetNames.add ("RETURN");
}
StringBuffer sb = new StringBuffer ();
for (int i = 0; i < targetNames.size (); i++) {
sb.append (targetNames.get (i));
if (i < targetNames.size () - 1) {
sb.append (" | ");
}
}
return sb.toString ();
}
}
Other Commons Attributes examples (source code examples)Here is a short list of links related to this Commons Attributes InvalidAttributeTargetError.java source code file: |
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