/*
* Copyright 2007 Tim Peierls
*
* 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.directwebremoting.guice;
import com.google.inject.Key;
import com.google.inject.Injector;
import java.util.Map;
import org.directwebremoting.extend.Creator;
/**
* Specialized creator implementation that uses an injector to
* look up its instances. This class is used by {@link InternalCreatorManager}.
* @author Tim Peierls [tim at peierls dot net]
*/
class InternalCreator implements Creator
{
InternalCreator(Injector injector, Key<?> key, String scriptName)
{
this.injector = injector;
this.key = key;
this.scriptName = scriptName;
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#setProperties(java.util.Map)
*/
public void setProperties(Map<String, String> params) throws IllegalArgumentException
{
// Do nothing, we ignore properties (since we inject everything we create).
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#getType()
*/
public Class<?> getType()
{
return (Class<?>) key.getTypeLiteral().getType();
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#getInstance()
*/
public Object getInstance() throws InstantiationException
{
return injector.getInstance(key);
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#getScope()
*/
public String getScope()
{
return Creator.PAGE; // i.e., tell DWR always to create
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#isCacheable()
*/
public boolean isCacheable()
{
return true;
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#isHidden()
*/
public boolean isHidden()
{
// TODO: enable hidden created classes through Guice
return false;
}
/* (non-Javadoc)
* @see org.directwebremoting.extend.Creator#getJavascript()
*/
public String getJavascript()
{
return scriptName;
}
private final Injector injector;
private final Key<?> key;
private final String scriptName;
}