Field Detail

• defaultValue

  private DataValueDescriptor defaultValue

  This class implements Formatable. That means that it can write itself to and from a formatted stream. If you add more fields to this class, make sure that you also write/read them with the writeExternal()/readExternal() methods. If, inbetween releases, you add more fields to this class, then you should bump the version number emitted by the getTypeFormatId() method.

• defaultText

  private java.lang.String defaultText

• type

  private int type

• referencedColumnNames

  private java.lang.String[] referencedColumnNames

• originalCurrentSchema

  private java.lang.String originalCurrentSchema

• BITS_MASK_IS_DEFAULTVALUE_AUTOINC

  private static final int BITS_MASK_IS_DEFAULTVALUE_AUTOINC

  See Also:

  Constant Field Values

• BITS_MASK_IS_GENERATED_COLUMN

  private static final int BITS_MASK_IS_GENERATED_COLUMN

  See Also:

  Constant Field Values

Constructor Detail

• DefaultInfoImpl

  public DefaultInfoImpl()

  Public niladic constructor. Needed for Formatable interface to work.

• DefaultInfoImpl

  public DefaultInfoImpl​(boolean isDefaultValueAutoinc,
                         java.lang.String defaultText,
                         DataValueDescriptor defaultValue)

  Constructor for use with numeric types

  Parameters:

  defaultText - The text of the default.

• DefaultInfoImpl

  public DefaultInfoImpl​(java.lang.String defaultText,
                         java.lang.String[] referencedColumnNames,
                         java.lang.String originalCurrentSchema)

  Constructor for use with generated columns

  Parameters:

  defaultText - Text of generation clause.

  referencedColumnNames - names of other columns in the base row which are mentioned in the generation clause.

  originalCurrentSchema - Schema in effect when the generate column was added to the table.

Method Detail

• getDefaultText

  public java.lang.String getDefaultText()

  Description copied from interface: DefaultInfo
  Get the text of a default.

  Specified by:

  getDefaultText in interface DefaultInfo

  Returns:

  The text of the default.

  See Also:

  DefaultInfo.getDefaultText()

• getReferencedColumnNames

  public java.lang.String[] getReferencedColumnNames()

  Description copied from interface: DefaultInfo
  If this default is a generation clause, then return the names of other columns in the row which the generation clause references.

  Specified by:

  getReferencedColumnNames in interface DefaultInfo

  See Also:

  DefaultInfo.getReferencedColumnNames()

• getOriginalCurrentSchema

  public java.lang.String getOriginalCurrentSchema()

  Description copied from interface: DefaultInfo
  Return the name of the current schema when the default was created. This is filled in for generated columns.

  Specified by:

  getOriginalCurrentSchema in interface DefaultInfo

  See Also:

  DefaultInfo.getOriginalCurrentSchema()

• toString

  public java.lang.String toString()

  Overrides:

  toString in class java.lang.Object

• readExternal

  public void readExternal​(java.io.ObjectInput in)
                    throws java.io.IOException,
                           java.lang.ClassNotFoundException

  Read this object from a stream of stored objects.

  Specified by:

  readExternal in interface java.io.Externalizable

  Parameters:

  in - read this.

  Throws:

  java.io.IOException - thrown on error

  java.lang.ClassNotFoundException - thrown on error

• writeExternal

  public void writeExternal​(java.io.ObjectOutput out)
                     throws java.io.IOException

  Write this object to a stream of stored objects.

  Specified by:

  writeExternal in interface java.io.Externalizable

  Parameters:

  out - write bytes here.

  Throws:

  java.io.IOException - thrown on error

• getTypeFormatId

  public int getTypeFormatId()

  Get the formatID which corresponds to this class.

  Specified by:

  getTypeFormatId in interface TypedFormat

  Returns:

  the formatID of this class

• getDefaultValue

  public DataValueDescriptor getDefaultValue()

  Get the default value. (NOTE: This returns null if the default is not a constant.)

  Returns:

  The default value.

• setDefaultValue

  public void setDefaultValue​(DataValueDescriptor defaultValue)

  Set the default value.

  Parameters:

  defaultValue - The default value.

• isDefaultValueAutoinc

  public boolean isDefaultValueAutoinc()

  Description copied from interface: DefaultInfo
  Is default value generated by auto increment?

  Specified by:

  isDefaultValueAutoinc in interface DefaultInfo

  Returns:

  true if always generated by auto increment.

  See Also:

  DefaultInfo.isDefaultValueAutoinc()

• isGeneratedColumn

  public boolean isGeneratedColumn()

  Description copied from interface: DefaultInfo
  Return true if this is the generation clause for a generated column.

  Specified by:

  isGeneratedColumn in interface DefaultInfo

  See Also:

  DefaultInfo.isGeneratedColumn()

• calcType

  private static int calcType​(boolean isDefaultValueAutoinc)

  This function returns stored value for flags and so on.