/*
* Copyright 2010 Outerthought bvba
*
* 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.lilyproject.repository.impl.valuetype;
import java.util.Comparator;
import org.lilyproject.bytes.api.DataInput;
import org.lilyproject.bytes.api.DataOutput;
import org.lilyproject.repository.api.IdentityRecordStack;
import org.lilyproject.repository.api.ValueType;
import org.lilyproject.repository.api.ValueTypeFactory;
public class StringValueType extends AbstractValueType implements ValueType {
public static final String NAME = "STRING";
private static final Comparator<String> COMPARATOR = new Comparator<String>() {
@Override
public int compare(String o1, String o2) {
return o1.compareTo(o2);
}
};
@Override
public String getBaseName() {
return NAME;
}
@Override
public ValueType getDeepestValueType() {
return this;
}
@Override
@SuppressWarnings("unchecked")
public String read(DataInput dataInput) {
// Read the encoding version byte, but ignore it for the moment since there is only one encoding
dataInput.readByte();
return dataInput.readUTF();
}
@Override
public void write(Object value, DataOutput dataOutput, IdentityRecordStack parentRecords) {
dataOutput.writeByte((byte)1); // Encoding version 1
dataOutput.writeUTF((String)value);
}
@Override
public Class getType() {
return String.class;
}
@Override
public Comparator getComparator() {
return COMPARATOR;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + NAME.hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
return true;
}
//
// Factory
//
public static ValueTypeFactory factory() {
return new StringValueTypeFactory();
}
public static class StringValueTypeFactory implements ValueTypeFactory {
private static StringValueType instance = new StringValueType();
@Override
public ValueType getValueType(String typeParams) {
return instance;
}
}
}