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//
// ========================================================================
// Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.start.graph;
/**
* Represents a selection criteria.
* <p>
* Each <code>Selection</code> can be used [0..n] times in the graph. The <code>Selection</code> must contain a unique
* 'criteria' description that how selection was determined.
*/
public class Selection
{
private final boolean explicit;
private final String criteria;
public Selection(String criteria)
{
this(criteria,true);
}
/**
* The Selection criteria
*
* @param criteria
* the selection criteria
* @param explicit
* true if explicitly selected, false if transitively selected.
*/
public Selection(String criteria, boolean explicit)
{
this.criteria = criteria;
this.explicit = explicit;
}
public Selection asTransitive()
{
if (this.explicit)
{
return new Selection(criteria,false);
}
return this;
}
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj == null)
{
return false;
}
if (getClass() != obj.getClass())
{
return false;
}
Selection other = (Selection)obj;
if (explicit != other.explicit)
{
return false;
}
if (criteria == null)
{
if (other.criteria != null)
{
return false;
}
}
else if (!criteria.equals(other.criteria))
{
return false;
}
return true;
}
/**
* Get the criteria for this selection
* @return the criteria
*/
public String getCriteria()
{
return criteria;
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = (prime * result) + (explicit ? 1231 : 1237);
result = (prime * result) + ((criteria == null) ? 0 : criteria.hashCode());
return result;
}
public boolean isExplicit()
{
return explicit;
}
@Override
public String toString()
{
StringBuilder str = new StringBuilder();
if (!explicit)
{
str.append("<transitive from> ");
}
str.append(criteria);
return str.toString();
}
}
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