org.elasticsearch.common.inject.spi.TypeConverterBinding Maven / Gradle / Ivy
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/*
* Copyright (C) 2008 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.spi;
import org.elasticsearch.common.inject.Binder;
import org.elasticsearch.common.inject.TypeLiteral;
import org.elasticsearch.common.inject.matcher.Matcher;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Registration of type converters for matching target types. Instances are created
* explicitly in a module using {@link org.elasticsearch.common.inject.Binder#convertToTypes(Matcher,
* TypeConverter) convertToTypes()} statements:
*
* convertToTypes(Matchers.only(DateTime.class), new DateTimeConverter());
*
* @author [email protected] (Jesse Wilson)
* @since 2.0
*/
public final class TypeConverterBinding implements Element {
private final Object source;
private final Matcher> typeMatcher;
private final TypeConverter typeConverter;
TypeConverterBinding(Object source, Matcher> typeMatcher,
TypeConverter typeConverter) {
this.source = checkNotNull(source, "source");
this.typeMatcher = checkNotNull(typeMatcher, "typeMatcher");
this.typeConverter = checkNotNull(typeConverter, "typeConverter");
}
@Override
public Object getSource() {
return source;
}
public Matcher> getTypeMatcher() {
return typeMatcher;
}
public TypeConverter getTypeConverter() {
return typeConverter;
}
@Override
public T acceptVisitor(ElementVisitor visitor) {
return visitor.visit(this);
}
@Override
public void applyTo(Binder binder) {
binder.withSource(getSource()).convertToTypes(typeMatcher, typeConverter);
}
}