Field Detail

• formatId

  private int formatId

  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.

• schemaName

  protected java.lang.String schemaName

• unqualifiedName

  java.lang.String unqualifiedName

• JDBCTypeId

  transient int JDBCTypeId

  JDBC type - derived from the format identifier.

Constructor Detail

• BaseTypeIdImpl

  public BaseTypeIdImpl()

  niladic constructor. Needed for Formatable interface to work.

• BaseTypeIdImpl

  public BaseTypeIdImpl​(int formatId)

  1 argument constructor. Needed for Formatable interface to work.

  Parameters:

  formatId - Format id of specific type id.

• BaseTypeIdImpl

  BaseTypeIdImpl​(java.lang.String SQLTypeName)

  Constructor for an BaseTypeIdImpl

  Parameters:

  SQLTypeName - The unqualified SQL name of the type

• BaseTypeIdImpl

  BaseTypeIdImpl​(java.lang.String schemaName,
                 java.lang.String unqualifiedName)

  Constructor for an BaseTypeIdImpl which describes a UDT

  Parameters:

  schemaName - The schema that the UDT lives in

  unqualifiedName - The unqualified name of the UDT in that schema

Method Detail

• getSQLTypeName

  public java.lang.String getSQLTypeName()

  Returns the SQL name of the datatype. If it is a Derby user-defined type, it returns the full Java path name for the datatype, meaning the dot-separated path including the package names. If it is a UDT, returns "schemaName"."unqualifiedName".

  Returns:

  A String containing the SQL name of this type.

• getSchemaName

  public java.lang.String getSchemaName()

  Get the schema name of this type. Non-null only for UDTs

• getUnqualifiedName

  public java.lang.String getUnqualifiedName()

  Get the unqualified name of this type. Except for UDTs, this is the same value as getSQLTypeName()

• isAnsiUDT

  public boolean isAnsiUDT()

  Return true if this is this type id describes an ANSI UDT

• getJDBCTypeId

  public int getJDBCTypeId()

  Get the jdbc type id for this type. JDBC type can be found in java.sql.Types.

  Returns:

  a jdbc type, e.g. java.sql.Types.DECIMAL

  See Also:

  Types

• toParsableString

  public java.lang.String toParsableString​(TypeDescriptor td)

  Converts this TypeId, given a data type descriptor (including length/precision), to a string. E.g. VARCHAR(30) For most data types, we just return the SQL type name.

  Parameters:

  td - Data type descriptor that holds the length/precision etc. as necessary

  Returns:

  String version of datatype, suitable for running through the Parser.

• userType

  public boolean userType()

  Does this type id represent a user type?

• toString

  public java.lang.String toString()

  Format this BaseTypeIdImpl as a String

  Overrides:

  toString in class java.lang.Object

  Returns:

  This BaseTypeIdImpl formatted as a String

• equals

  public boolean equals​(java.lang.Object that)

  we want equals to say if these are the same type id or not.

  Overrides:

  equals in class java.lang.Object

• hashCode

  public int hashCode()

  Hashcode which works with equals.

  Overrides:

  hashCode in class java.lang.Object

• getTypeFormatId

  public int getTypeFormatId()

  Get the formatID which corresponds to this class.

  Specified by:

  getTypeFormatId in interface TypedFormat

  Returns:

  the formatID of this class

• 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

• setTypeIdSpecificInstanceVariables

  private void setTypeIdSpecificInstanceVariables()

• doubleQuote

  private java.lang.String doubleQuote​(java.lang.String raw)

• stripQuotes

  private java.lang.String stripQuotes​(java.lang.String quoted)