Package uk.ac.starlink.table

Class MetaCopyStarTable

  • All Implemented Interfaces:
    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 Detail

      • MetaCopyStarTable

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

    • Method Detail

      • getName

        public java.lang.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​(java.lang.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 java.net.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​(java.net.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 java.util.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​(java.util.List<DescribedValue> paramList)

      • getParameterByName

        public DescribedValue getParameterByName​(java.lang.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)