Class VirtualColumnsExpressionFactory

  • All Implemented Interfaces:
    org.apache.calcite.sql2rel.InitializerExpressionFactory

    public class VirtualColumnsExpressionFactory
    extends org.apache.calcite.sql2rel.NullInitializerExpressionFactory
    Define column strategies for the "VIRTUALCOLUMNS" table.
    • Field Summary

      • Fields inherited from class org.apache.calcite.sql2rel.NullInitializerExpressionFactory

        INSTANCE
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      org.apache.calcite.schema.ColumnStrategy generationStrategy​(org.apache.calcite.plan.RelOptTable table, int iColumn)  
      • Methods inherited from class org.apache.calcite.sql2rel.NullInitializerExpressionFactory

        isGeneratedAlways, newAttributeInitializer, newColumnDefaultValue
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • VirtualColumnsExpressionFactory

        public VirtualColumnsExpressionFactory()
    • Method Detail

      • generationStrategy

        public org.apache.calcite.schema.ColumnStrategy generationStrategy​(org.apache.calcite.plan.RelOptTable table,
                                                                           int iColumn)
        Specified by:
        generationStrategy in interface org.apache.calcite.sql2rel.InitializerExpressionFactory
        Overrides:
        generationStrategy in class org.apache.calcite.sql2rel.NullInitializerExpressionFactory