org.hsqldb.jdbc

## Class JDBCColumnMetaData

- java.lang.Object
- - org.hsqldb.jdbc.JDBCColumnMetaData

-     public final class JDBCColumnMetaData
      extends java.lang.Object

  Provides a site for holding the ResultSetMetaData for individual ResultSet columns. In 2.0 it is implemented as a simple data structure derived from calls to JDBCResultSetMetaData methods. purposes.

  Since:
    HSQLDB 1.7.2
  Author:
    Campbell Burnet (campbell-burnet@users dot sourceforge.net), Fred Toussi (fredt@users dot sourceforge.net)

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `java.lang.String` | `catalogName` The column's table's catalog name.
    `java.lang.String` | `columnClassName` The fully-qualified name of the Java class whose instances are manufactured if the method ResultSet.getObject is called to retrieve a value from the column.
    `int` | `columnDisplaySize` The column's normal max width in chars.
    `java.lang.String` | `columnLabel` The suggested column title for use in printouts and displays.
    `java.lang.String` | `columnName` The column's name.
    `int` | `columnType` The column's SQL type.
    `boolean` | `isAutoIncrement` Whether the value of the column are automatically numbered.
    `boolean` | `isCaseSensitive` Whether the column's value's case matters.
    `boolean` | `isCurrency` Whether the values in the column are cash values.
    `boolean` | `isDefinitelyWritable` Whether a write on the column will definitely succeed.
    `int` | `isNullable` The nullability of values in the column.
    `boolean` | `isReadOnly` Whether the column's values are definitely not writable.
    `boolean` | `isSearchable` Whether the column's values can be used in a where clause.
    `boolean` | `isSigned` Whether values in the column are signed numbers.
    `boolean` | `isWritable` Whether it is possible for a write on the column to succeed.
    `int` | `precision` The column's value's number of decimal digits.
    `int` | `scale` The column's value's number of digits to right of the decimal point.
    `java.lang.String` | `schemaName` The column's table's schema.
    `java.lang.String` | `tableName` The column's table's name.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `JDBCColumnMetaData()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String` | `toString()` Retrieves a String representation of this object.

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Field Detail

    - #### catalogName

          public java.lang.String catalogName

      The column's table's catalog name.

    - #### columnClassName

          public java.lang.String columnClassName

      The fully-qualified name of the Java class whose instances are manufactured if the method ResultSet.getObject is called to retrieve a value from the column.

    - #### columnDisplaySize

          public int columnDisplaySize

      The column's normal max width in chars.

    - #### columnLabel

          public java.lang.String columnLabel

      The suggested column title for use in printouts and displays.

    - #### columnName

          public java.lang.String columnName

      The column's name.

    - #### columnType

          public int columnType

      The column's SQL type.

    - #### precision

          public int precision

      The column's value's number of decimal digits.

    - #### scale

          public int scale

      The column's value's number of digits to right of the decimal point.

    - #### schemaName

          public java.lang.String schemaName

      The column's table's schema.

    - #### tableName

          public java.lang.String tableName

      The column's table's name.

    - #### isAutoIncrement

          public boolean isAutoIncrement

      Whether the value of the column are automatically numbered.

    - #### isCaseSensitive

          public boolean isCaseSensitive

      Whether the column's value's case matters.

    - #### isCurrency

          public boolean isCurrency

      Whether the values in the column are cash values.

    - #### isDefinitelyWritable

          public boolean isDefinitelyWritable

      Whether a write on the column will definitely succeed.

    - #### isNullable

          public int isNullable

      The nullability of values in the column.

    - #### isReadOnly

          public boolean isReadOnly

      Whether the column's values are definitely not writable.

    - #### isSearchable

          public boolean isSearchable

      Whether the column's values can be used in a where clause.

    - #### isSigned

          public boolean isSigned

      Whether values in the column are signed numbers.

    - #### isWritable

          public boolean isWritable

      Whether it is possible for a write on the column to succeed.

  - ### Constructor Detail

    - #### JDBCColumnMetaData

          public JDBCColumnMetaData()

  - ### Method Detail

    - #### toString

          public java.lang.String toString()

      Retrieves a String representation of this object.
      Overrides:
        `toString` in class `java.lang.Object`
      Returns:
        a String representation of this object

Copyright © 2001 - 2018 HSQL Development Group.