Package org.springframework.jdbc.support.incrementer

Class AbstractDataFieldMaxValueIncrementer

java.lang.Object
org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer
All Implemented Interfaces:
InitializingBean, DataFieldMaxValueIncrementer
Direct Known Subclasses:
AbstractColumnMaxValueIncrementer, AbstractSequenceMaxValueIncrementer
public abstract class AbstractDataFieldMaxValueIncrementer extends Object implements DataFieldMaxValueIncrementer, InitializingBean
Base implementation of DataFieldMaxValueIncrementer that delegates to a single getNextKey() template method that returns a long. Uses longs for String values, padding with zeroes if required.
Author:
Dmitriy Kopylenko, Juergen Hoeller, Jean-Pierre Pawlak, Juergen Hoeller

  • Field Details

    • paddingLength

      protected int paddingLength
      The length to which a string result should be pre-pended with zeroes.

  • Constructor Details

    • AbstractDataFieldMaxValueIncrementer

      public AbstractDataFieldMaxValueIncrementer()
      Default constructor for bean property style usage.
      See Also:

    • AbstractDataFieldMaxValueIncrementer

      public AbstractDataFieldMaxValueIncrementer(DataSource dataSource, String incrementerName)
      Convenience constructor.
      Parameters:
      dataSource - the DataSource to use
      incrementerName - the name of the sequence/table to use

  • Method Details

    • setDataSource

      public void setDataSource(DataSource dataSource)
      Set the data source to retrieve the value from.

    • getDataSource

      public DataSource getDataSource()
      Return the data source to retrieve the value from.

    • setIncrementerName

      public void setIncrementerName(String incrementerName)
      Set the name of the sequence/table.

    • getIncrementerName

      public String getIncrementerName()
      Return the name of the sequence/table.

    • setPaddingLength

      public void setPaddingLength(int paddingLength)
      Set the padding length, i.e. the length to which a string result should be pre-pended with zeroes.

    • getPaddingLength

      public int getPaddingLength()
      Return the padding length for String values.

    • afterPropertiesSet

      public void afterPropertiesSet()
      Description copied from interface: InitializingBean
      Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.

      This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.

      Specified by:
      afterPropertiesSet in interface InitializingBean

    • nextIntValue

      public int nextIntValue() throws DataAccessException
      Description copied from interface: DataFieldMaxValueIncrementer
      Increment the data store field's max value as int.
      Specified by:
      nextIntValue in interface DataFieldMaxValueIncrementer
      Returns:
      int next data store value such as max + 1
      Throws:
      DataAccessException - in case of errors

    • nextLongValue

      public long nextLongValue() throws DataAccessException
      Description copied from interface: DataFieldMaxValueIncrementer
      Increment the data store field's max value as long.
      Specified by:
      nextLongValue in interface DataFieldMaxValueIncrementer
      Returns:
      int next data store value such as max + 1
      Throws:
      DataAccessException - in case of errors

    • nextStringValue

      public String nextStringValue() throws DataAccessException
      Description copied from interface: DataFieldMaxValueIncrementer
      Increment the data store field's max value as String.
      Specified by:
      nextStringValue in interface DataFieldMaxValueIncrementer
      Returns:
      next data store value such as max + 1
      Throws:
      DataAccessException - in case of errors

    • getNextKey

      protected abstract long getNextKey()
      Determine the next key to use, as a long.
      Returns:
      the key to use as a long. It will eventually be converted later in another format by the public concrete methods of this class.