io.ebeaninternal.dbmigration.ddlgeneration.platform.DdlHelp Maven / Gradle / Ivy

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DDL and DB Migration generation

There is a newer version: 15.8.0

package io.ebeaninternal.dbmigration.ddlgeneration.platform;

public class DdlHelp {

  public static final String TABLESPACE_DEFAULT = "$TABLESPACE_DEFAULT";
  public static final String DROP_DEFAULT = "DROP DEFAULT";
  public static final String DROP_COMMENT = "DROP COMMENT";
  public static final String DROP_CONSTRAINT = "DROP CONSTRAINT";
  public static final String DROP_FOREIGN_KEY = "DROP FOREIGN KEY";

  /**
   * Return true if the default value is the special DROP DEFAULT value.
   */
  public static boolean isDropDefault(String value) {
    return DROP_DEFAULT.equals(value);
  }

  /**
   * Return true if the default value is the special DROP COMMENT value.
   */
  public static boolean isDropComment(String value) {
    return DROP_COMMENT.equals(value);
  }

  /**
   * Return true if the default value is the special DROP CONSTRAINT value.
   */
  public static boolean isDropConstraint(String value) {
    return DROP_CONSTRAINT.equals(value);
  }

  /**
   * Return true if the default value is the special DROP FOREIGN KEY value.
   */
  public static boolean isDropForeignKey(String value) {
    return DROP_FOREIGN_KEY.equals(value);
  }

  /**
   * Returns the tablespace. Returns null, if this is the special '$TABLESPACE_DEFAULT' value.
   */
  public static String toTablespace(String tablespace) {
    if (TABLESPACE_DEFAULT.equals(tablespace)) {
      return null;
    } else {
      return tablespace;
    }
  }
}