Class MetaCopyStarTable

java.lang.Object
uk.ac.starlink.table.WrapperStarTable
uk.ac.starlink.table.MetaCopyStarTable
All Implemented Interfaces:
Closeable, AutoCloseable, StarTable
public class MetaCopyStarTable extends WrapperStarTable
Wrapper table which makes deep copies of the table metadata, including column metadata and table parameters. Changes can safely be made to the metadata of this table without affecting the base table. Note that the metadata will not track changes in the column count of the base table.
Since:
23 Jul 2010
Author:
Mark Taylor

  • Constructor Details

    • MetaCopyStarTable

      public MetaCopyStarTable(StarTable base)
      Constructor.
      Parameters:
      base - base table

  • Method Details

    • getName

      public String getName()
      Description copied from interface: StarTable
      Returns the name of this table, if it has one. The meaning of the name is not defined, but it will typically be a short string of text indicating the identity of this table.
      Specified by:
      getName in interface StarTable
      Overrides:
      getName in class WrapperStarTable
      Returns:
      a name for this table, or null if no suitable one exists

    • setName

      public void setName(String name)
      Description copied from interface: StarTable
      Sets the name of this table. If called, the supplied name should provide the return value for subsequent calls of StarTable.getName().
      Specified by:
      setName in interface StarTable
      Overrides:
      setName in class WrapperStarTable
      Parameters:
      name - table name

    • getURL

      public URL getURL()
      Description copied from class: WrapperStarTable
      Initially returns null to indicate that this table itself is not persistent.
      Specified by:
      getURL in interface StarTable
      Overrides:
      getURL in class WrapperStarTable
      Returns:
      the URL of this table, or null if none is known

    • setURL

      public void setURL(URL url)
      Description copied from interface: StarTable
      Sets the URL of this table. It ought to be possible in principle to reconstruct this table by reading the resource at url. If called, the supplied url should provide the return value for subsequent calls of StarTable.getURL().
      Specified by:
      setURL in interface StarTable
      Overrides:
      setURL in class WrapperStarTable
      Parameters:
      url - table URL

    • getParameters

      public List<DescribedValue> getParameters()
      Description copied from interface: StarTable
      Returns a list of table parameters, that is metadata items which pertain to the entire table.
      Specified by:
      getParameters in interface StarTable
      Overrides:
      getParameters in class WrapperStarTable
      Returns:
      a List of DescribedValue objects constituting table-wide metadata not covered elsewhere in this interface

    • setParameters

      public void setParameters(List<DescribedValue> paramList)

    • getParameterByName

      public DescribedValue getParameterByName(String name)
      Description copied from interface: StarTable
      Returns a parameter (table-wide metadata item) of this table located by its name. If more than one parameter with the given name exists, an arbitrary one will be returned. If no parameter with the given name exists, null will be returned.
      Specified by:
      getParameterByName in interface StarTable
      Overrides:
      getParameterByName in class WrapperStarTable
      Parameters:
      name - the name of the table parameter required

    • setParameter

      public void setParameter(DescribedValue dval)
      Description copied from interface: StarTable
      Adds the given DescribedValue to the list of parameter metadata objects associated with this table. If an item in the parameter list with the same name as the supplied value already exists, it is removed from the list.
      Specified by:
      setParameter in interface StarTable
      Overrides:
      setParameter in class WrapperStarTable
      Parameters:
      dval - the new parameter datum to add

    • getColumnInfo

      public ColumnInfo getColumnInfo(int icol)
      Description copied from interface: StarTable
      Returns the object describing the data in a given column.
      Specified by:
      getColumnInfo in interface StarTable
      Overrides:
      getColumnInfo in class WrapperStarTable
      Parameters:
      icol - the column for which header information is required
      Returns:
      a ValueInfo object for column icol

    • setColumnInfo

      public void setColumnInfo(int icol, ColumnInfo colInfo)

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