org.springframework.data.couchbase.core.convert.ConverterRegistration Maven / Gradle / Ivy
/*
* Copyright 2012-2015 the original author or authors
*
* 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.springframework.data.couchbase.core.convert;
import org.springframework.core.convert.converter.GenericConverter.ConvertiblePair;
import org.springframework.data.couchbase.core.mapping.CouchbaseSimpleTypes;
import org.springframework.util.Assert;
/**
* Conversion registration information.
*
* @author Oliver Gierke
* @author Michael Nitschinger
*/
class ConverterRegistration {
private final ConvertiblePair convertiblePair;
private final boolean reading;
private final boolean writing;
/**
* Creates a new {@link ConverterRegistration}.
*
* @param convertiblePair must not be {@literal null}.
* @param isReading whether to force to consider the converter for reading.
* @param isWriting whether to force to consider the converter for reading.
*/
public ConverterRegistration(ConvertiblePair convertiblePair, boolean isReading, boolean isWriting) {
Assert.notNull(convertiblePair);
this.convertiblePair = convertiblePair;
reading = isReading;
writing = isWriting;
}
/**
* Creates a new {@link ConverterRegistration} from the given source and target type and read/write flags.
*
* @param source the source type to be converted from, must not be {@literal null}.
* @param target the target type to be converted to, must not be {@literal null}.
* @param isReading whether to force to consider the converter for reading.
* @param isWriting whether to force to consider the converter for writing.
*/
public ConverterRegistration(Class source, Class target, boolean isReading, boolean isWriting) {
this(new ConvertiblePair(source, target), isReading, isWriting);
}
/**
* Returns whether the converter shall be used for writing.
*
* @return
*/
public boolean isWriting() {
return writing == true || (!reading && isSimpleTargetType());
}
/**
* Returns whether the converter shall be used for reading.
*
* @return
*/
public boolean isReading() {
return reading == true || (!writing && isSimpleSourceType());
}
/**
* Returns the actual conversion pair.
*
* @return
*/
public ConvertiblePair getConvertiblePair() {
return convertiblePair;
}
/**
* Returns whether the source type is a Couchbase simple one.
*
* @return
*/
public boolean isSimpleSourceType() {
return isCouchbaseBasicType(convertiblePair.getSourceType());
}
/**
* Returns whether the target type is a Couchbase simple one.
*
* @return
*/
public boolean isSimpleTargetType() {
return isCouchbaseBasicType(convertiblePair.getTargetType());
}
/**
* Returns whether the given type is a type that Couchbase can handle basically.
*
* @param type
* @return
*/
private static boolean isCouchbaseBasicType(Class type) {
return CouchbaseSimpleTypes.HOLDER.isSimpleType(type);
}
}