/
Namespace.java
81 lines (69 loc) · 1.58 KB
/
Namespace.java
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package org.jboss.webbeans.el;
import java.util.HashMap;
import java.util.Map;
/**
* A namespace for bean names
*
* @author Gavin King
*
*/
public class Namespace
{
private final String qualifiedName;
private final String name;
private final Map<String, Namespace> children = new HashMap<String, Namespace>();
public Namespace(String name, String qualifiedName)
{
this.name = name;
this.qualifiedName = qualifiedName;
}
public Namespace putIfAbsent(String key)
{
Namespace result = children.get(key);
if (result==null)
{
result = new Namespace( key, qualifyName(key) );
children.put(key, result);
}
return result;
}
public Namespace get(String key)
{
return children.get(key);
}
public boolean contains(String key)
{
return children.containsKey(key);
}
public String getQualifiedName()
{
return qualifiedName;
}
public String qualifyName(String suffix)
{
return qualifiedName == null ? suffix : qualifiedName + "." + suffix;
}
@Override
public int hashCode()
{
return name==null ? 0 : name.hashCode();
}
@Override
public boolean equals(Object other)
{
if (other instanceof Namespace)
{
Namespace that = (Namespace) other;
return this.getQualifiedName().equals(that.getQualifiedName());
}
else
{
return false;
}
}
@Override
public String toString()
{
return "Namespace(" + ( name==null ? "Root" : name ) + ')';
}
}