rdonkin 2004/08/23 12:36:35
Added: betwixt/src/java/org/apache/commons/betwixt/strategy
ValueSuppressionStrategy.java
Log:
Added strategy for attribute suppression. This should (belatedly) give a solution
for issue #24659.
Revision Changes Path
1.1
jakarta-commons/betwixt/src/java/org/apache/commons/betwixt/strategy/ValueSuppressionStrategy.java
Index: ValueSuppressionStrategy.java
===================================================================
/*
* Copyright 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.betwixt.strategy;
import org.apache.commons.betwixt.AttributeDescriptor;
/**
* Determines whether the expression of an attribute with a values
* should be suppressed.
*
* @author <a href='http://jakarta.apache.org/commons'>Jakarta Commons Team</a>, <a
href='http://www.apache.org'>Apache Software Foundation</a>
*/
public abstract class ValueSuppressionStrategy {
/**
* Strategy allows all values to be expressed for all attributes
*/
public static final ValueSuppressionStrategy ALLOW_ALL_VALUES = new
ValueSuppressionStrategy() {
public boolean suppressAttribute(AttributeDescriptor attributeDescriptor,
String value) {
return true;
}
};
/**
* Suppresses all null values.
*/
public static final ValueSuppressionStrategy SUPPRESS_EMPTY = new
ValueSuppressionStrategy() {
public boolean suppressAttribute(AttributeDescriptor attributeDescriptor,
String value) {
return "".equals(value);
}
};
/**
* Default strategy is [EMAIL PROTECTED] #SUPPRESS_EMPTY}.
*/
public static final ValueSuppressionStrategy DEFAULT = SUPPRESS_EMPTY;
/**
* Should the given attribute value be suppressed?
* @param attributeDescriptor <code>AttributeDescriptor</code> describing the
attribute, not null
* @param value <code>Object</code> value, possibly null
* @return true if the attribute should not be written for the given value
*/
public abstract boolean suppressAttribute(AttributeDescriptor
attributeDescriptor, String value);
}
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