br.com.objectos.way.sql.SqlSelectMethod Maven / Gradle / Ivy

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/*
 * Copyright 2014-2015 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.way.sql;

import java.util.stream.Collectors;

import javax.lang.model.element.Modifier;

import com.squareup.javapoet.MethodSpec;

/**
 * @author [email protected] (Marcio Endo)
 */
class SqlSelectMethod {

  private final Level level;

  public SqlSelectMethod(Level level) {
    this.level = level;
  }

  public MethodSpec get() {
    return MethodSpec.methodBuilder("select")
        .addModifiers(Modifier.PUBLIC, Modifier.STATIC)
        .addTypeVariables(level.stepList(Step::tExtendsSelectable))
        .returns(level.parameterizedTypeNameLevel("Select"))
        .addParameters(level.stepList(Step::columnParameter))
        .addStatement(
            "return new $T<>($L)",
            level.classNameLevel("Select"),
            level.stepStream(Step::columnName).collect(Collectors.joining(", ")))
        .build();
  }

}