How to use

buildExpression

method

in

org.eclipse.persistence.descriptors.FieldsLockingPolicy

/**
 * INTERNAL:
 * When given an expression, this method will return a new expression with the optimistic
 * locking values included.  The values are taken from the passed in database row.
 * This expression will be used in a delete call.
 */
public Expression buildDeleteExpression(DatabaseTable table, Expression mainExpression, AbstractRecord row) {
  return mainExpression.and(buildExpression(table, row, null, mainExpression.getBuilder()));
}

/**
 * INTERNAL:
 * This method must be included in any locking policy.  When given an
 * expression, this method will return a new expression with the optimistic
 * locking values included.  The values are taken from the passed in database row.
 * This expression will be used in a delete call.
 */
public Expression buildUpdateExpression(DatabaseTable table, Expression mainExpression, AbstractRecord transRow, AbstractRecord modifyRow) {
  return mainExpression.and(buildExpression(table, transRow, modifyRow, mainExpression.getBuilder()));
}

/**
 * INTERNAL:
 * This method must be included in any locking policy.  When given an
 * expression, this method will return a new expression with the optimistic
 * locking values included.  The values are taken from the passed in database row.
 * This expression will be used in a delete call.
 */
public Expression buildUpdateExpression(DatabaseTable table, Expression mainExpression, AbstractRecord transRow, AbstractRecord modifyRow) {
  return mainExpression.and(buildExpression(table, transRow, modifyRow, mainExpression.getBuilder()));
}

/**
 * INTERNAL:
 * When given an expression, this method will return a new expression with the optimistic
 * locking values included.  The values are taken from the passed in database row.
 * This expression will be used in a delete call.
 */
public Expression buildDeleteExpression(DatabaseTable table, Expression mainExpression, AbstractRecord row) {
  return mainExpression.and(buildExpression(table, row, null, mainExpression.getBuilder()));
}

/**
 * INTERNAL:
 * When given an expression, this method will return a new expression with the optimistic
 * locking values included.  The values are taken from the passed in database row.
 * This expression will be used in a delete call.
 */
public Expression buildDeleteExpression(DatabaseTable table, Expression mainExpression, AbstractRecord row) {
  return mainExpression.and(buildExpression(table, row, null, mainExpression.getBuilder()));
}

/**
 * INTERNAL:
 * This method must be included in any locking policy.  When given an
 * expression, this method will return a new expression with the optimistic
 * locking values included.  The values are taken from the passed in database row.
 * This expression will be used in a delete call.
 */
public Expression buildUpdateExpression(DatabaseTable table, Expression mainExpression, AbstractRecord transRow, AbstractRecord modifyRow) {
  return mainExpression.and(buildExpression(table, transRow, modifyRow, mainExpression.getBuilder()));
}