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Class symantec.itools.db.beans.brl.derivation.date.DateSubtractFunction

Object
   |
   +----symantec.itools.db.beans.brl.derivation.date.DateSubtractFunction

public class DateSubtractFunction

extends Object

implements Calculation

Version:

1.0, 10/09/98

Author:

Puru Balakrishnan

NAME

symantec.itools.db.beans.brl.derivation.date.DateSubtractFunction()

getComputedValue(DerivationRow, int)

return the computed value from the passed in input Row.

getDisplayString()

Method to return a String which would be used for displaying method information to the user Example: For a class which calculates the sum of three columns using a description like "sum( ?,?,? )" would be appropriate.

isUsedForAggregate()

Method to determine if this can be used for aggregate calculations

public static final java.lang.String NAME

public DateSubtractFunction()

public java.lang.Object getComputedValue(DerivationRow inputRow,
                                         int outputDataType)

return the computed value from the passed in input Row. The first parameter ,ComputeRow, is a grouping of columns which are to be used for calculating the new derived value. These columns could represent constant as well as real database columns.

Parameters:

inputRow - row of input columns

outputDataType - datatype for desired output as in java.sql.Types

Returns:

Object representing the new computed value

See Also:

ComputeRow, CompColMember

public java.lang.String getDisplayString()

Method to return a String which would be used for displaying method information to the user Example: For a class which calculates the sum of three columns using a description like "sum( ?,?,? )" would be appropriate.

Returns:

String

public boolean isUsedForAggregate()

Method to determine if this can be used for aggregate calculations

Returns:

true or false

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