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AssertJ-DB - Rich and fluent assertions for testing with database
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/**
 * 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.
 *
 * Copyright 2012-2015 the original author or authors.
 */
package org.assertj.db.api;

import org.assertj.db.api.assertions.*;
import org.assertj.db.api.assertions.impl.*;
import org.assertj.db.api.navigation.ColumnAssert;
import org.assertj.db.type.*;

import java.lang.reflect.Constructor;
import java.util.List;

/**
 * Base class for all {@link Column}s assertions.
 *
 * @author Régis Pouiller
 * 
 * @param  The class of the actual value (an sub-class of {@link AbstractDbData}).
 * @param  The class of the original assertion (an sub-class of {@link AbstractDbAssert}).
 * @param  The class of this assertion (an sub-class of {@link AbstractColumnAssert}).
 * @param  The class of this assertion on the value (an sub-class of {@link AbstractColumnValueAssert}).
 * @param  The class of the equivalent row assertion (an sub-class of {@link AbstractRowAssert}).
 * @param  The class of the equivalent row assertion on the value (an sub-class of {@link AbstractRowValueAssert}).
 */
public abstract class AbstractColumnAssert, A extends AbstractDbAssert, C extends AbstractColumnAssert, CV extends AbstractColumnValueAssert, R extends AbstractRowAssert, RV extends AbstractRowValueAssert>
        extends AbstractSubAssert
        implements ColumnAssert,
                   AssertOnColumnEquality,
                   AssertOnNumberOfRows,
                   AssertOnColumnName,
                   AssertOnColumnType,
                   AssertOnColumnNullity {

  /**
   * Column on which do the assertion.
   */
  private final Column column;

  /**
   * Constructor.
   * 
   * @param originalDbAssert The original assert. That could be a {@link RequestAssert} or a {@link TableAssert}.
   * @param selfType Type of this assertion class : a sub-class of {@code AbstractColumnAssert}.
   * @param valueType Class of the assert on the value : a sub-class of {@code AbstractColumnValueAssert}.
   */
  AbstractColumnAssert(A originalDbAssert, Class selfType, Class valueType, Column column) {
    super(originalDbAssert, selfType, valueType);
    this.column = column;
  }

  /** {@inheritDoc} */
  @Override
  protected CV getValueAssertInstance(Class valueAssertType, int index, Object value) throws Exception {
    Constructor constructor = valueAssertType.getDeclaredConstructor(myself.getClass(), Object.class);
    CV instance = constructor.newInstance(this, value);
    return instance.as("Value at index " + index + " of " + info.descriptionText());
  }

  /** {@inheritDoc} */
  @Override
  protected List