br.com.objectos.schema.info.ThisAutoIncrementGenerationInfo Maven / Gradle / Ivy

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/*
 * 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.schema.info;

import java.util.Set;

import br.com.objectos.code.MethodInfo;
import br.com.objectos.code.SimpleTypeInfo;
import br.com.objectos.core.util.ImmutableSet;
import br.com.objectos.schema.meta.GeneratedValue;
import br.com.objectos.schema.meta.GenerationKind;
import br.com.objectos.schema.type.BigIntColumn;
import br.com.objectos.schema.type.IntColumn;
import br.com.objectos.schema.type.MediumIntColumn;
import br.com.objectos.schema.type.SmallIntColumn;
import br.com.objectos.schema.type.TinyIntColumn;
import br.com.objectos.testable.Equality;
import br.com.objectos.testable.Tester;

import com.squareup.javapoet.AnnotationSpec;
import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.TypeSpec;

/**
 * @author [email protected] (Marcio Endo)
 */
class ThisAutoIncrementGenerationInfo extends ThisGenerationInfo implements AutoIncrementGenerationInfo {

  private static final ThisAutoIncrementGenerationInfo INSTANCE = new ThisAutoIncrementGenerationInfo();

  private static final Set NAME_SET = ImmutableSet. builder()
      .add(BigIntColumn.class.getName())
      .add(IntColumn.class.getName())
      .add(MediumIntColumn.class.getName())
      .add(SmallIntColumn.class.getName())
      .add(TinyIntColumn.class.getName())
      .build();

  private ThisAutoIncrementGenerationInfo() {
  }

  public static ThisAutoIncrementGenerationInfo of(MethodInfo methodInfo, SimpleTypeInfo simpleTypeInfo) {
    String qualifiedName = simpleTypeInfo.qualifiedName();

    if (!NAME_SET.contains(qualifiedName)) {
      methodInfo.compilationError("field cannot be annotated with @AutoIncrement.");
    }

    return INSTANCE;
  }

  public static ThisAutoIncrementGenerationInfo of(String qualifiedName) {
    if (!NAME_SET.contains(qualifiedName)) {
      throw new IllegalArgumentException();
    }

    return INSTANCE;
  }

  @Override
  public void generatedValue(TypeSpec.Builder innerAnnotation) {
    innerAnnotation.addAnnotation(AnnotationSpec.builder(GeneratedValue.class)
        .addMember("value", "$T.$L", GenerationKind.class, GenerationKind.AUTO_INCREMENT)
        .build());
  }

  @Override
  public void insertValuesBody0(CodeBlock.Builder body, ClassName columnClassName, ColumnName columnName) {
    body.add("    .generatedKey($L)\n", columnName.identifier());
  }

  @Override
  public void insertValuesBody1(CodeBlock.Builder body, ClassName columnClassName, ColumnName columnName) {
    insertValuesBody0(body, columnClassName, columnName);
  }

  @Override
  public Equality isEqualTo(Object o) {
    return Tester.of(ThisAutoIncrementGenerationInfo.class).test(this, o);
  }

}