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There is a newer version: 0.5.2

/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.flat;

import java.util.Optional;

import br.com.objectos.code.SimpleTypeInfo;
import br.com.objectos.pojo.plugin.Property;

import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.ParameterizedTypeName;
import com.squareup.javapoet.TypeName;

/**
 * @author [email protected] (Marcio Endo)
 */
class SingleRecordMethod extends RecordMethod {

  private SingleRecordMethod(Property property, SimpleTypeInfo recordtypeInfo, TypeName recordTypeName) {
    super(property, recordtypeInfo, recordTypeName);
  }

  public static SingleRecordMethod code(Property property, SimpleTypeInfo returnTypeInfo) {
    TypeName recordTypeName = returnTypeInfo.typeNameRaw();
    return new SingleRecordMethod(property, returnTypeInfo, recordTypeName);
  }

  @Override
  void flatFileWriteTo(CodeBlock.Builder body) {
    body.addStatement("(($T) $L).emit(file)", FlatRecord.class, propertyFieldName());
  }

  @Override
  ExceptionField exceptionField() {
    TypeName recordTypeName = recordTypeName();
    ClassName optional = ClassName.get(Optional.class);
    ParameterizedTypeName optionalOf = ParameterizedTypeName.get(optional, recordTypeName);
    return new SingleExceptionField(recordTypeName, optionalOf, propertyFieldName());
  }

  @Override
  void parserParseStatementTo(CodeBlock.Builder body) {
    body.addStatement("$T<$T> $L = file.parseOne($T.get())",
        Result.class, recordTypeName(), propertyFieldName(), recordParserTypeName());
  }

}