Class StaticDataRow

java.lang.Object
org.jfree.report.data.StaticDataRow
All Implemented Interfaces:
DataRow, DataSet
Direct Known Subclasses:
ImportedVariablesDataRow, ParameterDataRow

public class StaticDataRow extends Object implements DataRow
This is a static datarow holding a value for each name in the datarow. This datarow does not hold dataflags and thus does not track the changes done to the data inside.

The StaticDataRow is a derived view and is used to provide a safe collection of the values of the previous datarow.

Author:
Thomas Morgner
  • Constructor Details

  • Method Details

    • setData

      protected void setData(String[] names, Object[] values)
    • updateData

      protected void updateData(Object[] values)
    • get

      public Object get(int col) throws DataSourceException
      Returns the value of the expression or column in the tablemodel using the given column number as index. For functions and expressions, the getValue() method is called and for columns from the tablemodel the tablemodel method getValueAt(row, column) gets called.
      Specified by:
      get in interface DataRow
      Specified by:
      get in interface DataSet
      Parameters:
      col - the item index.
      Returns:
      the value.
      Throws:
      IllegalStateException - if the datarow detected a deadlock.
      DataSourceException - if an error occured.
    • get

      public Object get(String col) throws DataSourceException
      Returns the value of the function, expression or column using its specific name. The given name is translated into a valid column number and the the column is queried. For functions and expressions, the getValue() method is called and for columns from the tablemodel the tablemodel method getValueAt(row, column) gets called.
      Specified by:
      get in interface DataRow
      Parameters:
      col - the item index.
      Returns:
      the value.
      Throws:
      IllegalStateException - if the datarow detected a deadlock.
      DataSourceException - if an error occured.
    • getColumnName

      public String getColumnName(int col) throws DataSourceException
      Returns the name of the column, expression or function. For columns from the tablemodel, the tablemodels getColumnName method is called. For functions, expressions and report properties the assigned name is returned.
      Specified by:
      getColumnName in interface DataRow
      Specified by:
      getColumnName in interface DataSet
      Parameters:
      col - the item index.
      Returns:
      the name.
      Throws:
      DataSourceException - if an error occured.
    • getColumnCount

      public int getColumnCount() throws DataSourceException
      Returns the number of columns, expressions and functions and marked ReportProperties in the report.
      Specified by:
      getColumnCount in interface DataRow
      Specified by:
      getColumnCount in interface DataSet
      Returns:
      the item count.
      Throws:
      DataSourceException - if an error occured.
    • getFlags

      public DataFlags getFlags(String col) throws DataSourceException
      Description copied from interface: DataRow
      Queries lowlevel meta-data for the current value of the specified column.
      Specified by:
      getFlags in interface DataRow
      Parameters:
      col - the colum for which to query the meta-data flags
      Returns:
      the dataflag collection for the value in the named column
      Throws:
      DataSourceException - if an error occured.
    • getFlags

      public DataFlags getFlags(int col) throws DataSourceException
      Description copied from interface: DataRow
      Queries lowlevel meta-data for the current value of the specified column.
      Specified by:
      getFlags in interface DataRow
      Parameters:
      col - the colum for which to query the meta-data flags
      Returns:
      the dataflag collection for the value in the specified column
      Throws:
      DataSourceException - if an error occured.