org.elasticsearch.common.inject.internal.InternalFactory Maven / Gradle / Ivy
/**
* Copyright (C) 2006 Google Inc.
*
* 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.elasticsearch.common.inject.internal;
import org.elasticsearch.common.inject.spi.Dependency;
/**
* Creates objects which will be injected.
*
* @author [email protected] (Bob Lee)
*/
public interface InternalFactory {
/**
* ES:
* An factory that returns a pre created instance.
*/
public static class Instance implements InternalFactory {
private final T object;
public Instance(T object) {
this.object = object;
}
@Override
public T get(Errors errors, InternalContext context, Dependency dependency) throws ErrorsException {
return object;
}
@Override
public String toString() {
return object.toString();
}
}
/**
* Creates an object to be injected.
*
* @param context of this injection
* @return instance to be injected
* @throws org.elasticsearch.common.inject.internal.ErrorsException
* if a value cannot be provided
*/
T get(Errors errors, InternalContext context, Dependency dependency)
throws ErrorsException;
}