io.ebeaninternal.server.deploy.generatedproperty.GeneratedCounterInteger Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ebean Show documentation

composite of common runtime dependencies for all platforms

There is a newer version: 15.8.1

package io.ebeaninternal.server.deploy.generatedproperty;

import io.ebean.bean.EntityBean;
import io.ebeaninternal.server.deploy.BeanProperty;

/**
 * Used to create a counter version column for Integer.
 */
public class GeneratedCounterInteger implements GeneratedProperty {

  public GeneratedCounterInteger() {

  }

  /**
   * Always returns a 1.
   */
  @Override
  public Object getInsertValue(BeanProperty prop, EntityBean bean, long now) {
    return 1;
  }

  /**
   * Increments the current value by one.
   */
  @Override
  public Object getUpdateValue(BeanProperty prop, EntityBean bean, long now) {
    Integer val = (Integer) prop.getValue(bean);
    if (val == null) {
      throw new IllegalStateException("version property has been set to null on bean: " + bean);
    }
    return val + 1;
  }

  /**
   * Include this in every update.
   */
  @Override
  public boolean includeInUpdate() {
    return true;
  }

  @Override
  public boolean includeInAllUpdates() {
    return false;
  }

  /**
   * Include this in every insert setting initial counter value to 1.
   */
  @Override
  public boolean includeInInsert() {
    return true;
  }

  @Override
  public boolean isDDLNotNullable() {
    return true;
  }

}