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/*******************************************************************************
* Copyright (c) 2006, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jface.viewers;
import java.util.HashMap;
import java.util.Map;
/**
* A concrete implementation of the {@link IDecorationContext} interface,
* suitable for instantiating.
* <p>
* This class is not intended to be subclassed.
* </p>
* @since 3.2
*/
public class DecorationContext implements IDecorationContext {
/**
* Constant that defines a default decoration context that has
* no context ids associated with it.
*/
public static final IDecorationContext DEFAULT_CONTEXT = new DecorationContext();
private Map<String, Object> properties = new HashMap<>();
/**
* Create a decoration context.
*/
public DecorationContext() {
}
@Override
public Object getProperty(String property) {
return properties.get(property);
}
@Override
public String[] getProperties() {
return properties.keySet().toArray(new String[properties.size()]);
}
/**
* Set the given property to the given value. Setting the value of
* a property to <code>null</code> removes the property from
* the context.
* @param property the property
* @param value the value of the property or <code>null</code>
* if the property is to be removed.
*/
public void putProperty(String property, Object value) {
if (value == null) {
properties.remove(property);
} else {
properties.put(property, value);
}
}
}
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