com.elegantj.data.comp.computedfield
Interface Computable

All Known Implementing Classes:

ComputableField, ComputedField

public interface Computable

A Computable interface which provides the functionality for computation

Method Summary

java.lang.Object	executeExp() Executes the expression
java.util.Vector	getColumnData(int colIndex) Returns the column values of the column at colIndex
java.util.Vector	getColumnData(java.lang.String name) Fetches the specified column's data
java.util.Vector	getColumnNames() Returns the column names
int	getCurrentIndex() Returns the current index
int	getCurrentPage() Returns the current vertical page index
int	getCurrentPageAcross() Returns the current horizontal page index
java.util.Vector	getCurrentRecord() Returns the current record
java.util.Vector	getData() Returns the data for computation
java.lang.String	getExpression() Gets the expression string to be executed
java.lang.String[]	getMethods() Returns the valid methods to use in the expression
java.lang.String[]	getOperators() Returns the valid operators to use in the expression
int	getPageAcrossCount() Returns the horizontal page count
int	getPageCount() Returns the vertical page count
void	setColumnNames(java.util.Vector columnNames) Sets the column names
void	setCurrentIndex(int index) Sets the current index
void	setCurrentPage(int n) Sets the current vertical page index
void	setCurrentPageAcross(int n) Sets the current horizontal page index
void	setData(java.util.Vector data) Sets the data for computation
void	setExpression(java.lang.String exp) Sets the expression string to be executed
void	setPageAcrossCount(int n) Sets the horizontal page count
void	setPageCount(int n) Sets the vertical page count
boolean	verifyExp() Checks the expression whether it is valid or not

Method Detail

setExpression

public void setExpression(java.lang.String exp)

Sets the expression string to be executed

Parameters:

exp - the expression string

getExpression

public java.lang.String getExpression()

Gets the expression string to be executed

Returns:

the expression string

verifyExp

public boolean verifyExp()

Checks the expression whether it is valid or not

Returns:

true, if an expression is valid, otherwise false

executeExp

public java.lang.Object executeExp()

Executes the expression

Returns:

the result of the expression

setData

public void setData(java.util.Vector data)

Sets the data for computation

Parameters:

data - the vector contains the data

getData

public java.util.Vector getData()

Returns the data for computation

Returns:

the vector contains the data

setColumnNames

public void setColumnNames(java.util.Vector columnNames)

Sets the column names

Parameters:

columnNames - the vector contains the column names

getColumnNames

public java.util.Vector getColumnNames()

Returns the column names

Returns:

the vector contains the column names

setCurrentIndex

public void setCurrentIndex(int index)

Sets the current index

Parameters:

index - the index of the record ,being proccessed

getCurrentIndex

public int getCurrentIndex()

Returns the current index

Returns:

the index of the record ,being proccessed

getCurrentRecord

public java.util.Vector getCurrentRecord()

Returns the current record

Returns:

the vector containing the current record values

getColumnData

public java.util.Vector getColumnData(java.lang.String name)

Fetches the specified column's data

Parameters:

name - a column name

Returns:

the vector contains the column's data

getColumnData

public java.util.Vector getColumnData(int colIndex)

Returns the column values of the column at colIndex

Parameters:

colIndex - the column index

Returns:

the vector of the column values

setCurrentPage

public void setCurrentPage(int n)

Sets the current vertical page index

Parameters:

n - the current vertical page index

getCurrentPage

public int getCurrentPage()

Returns the current vertical page index

Returns:

the current vertical page index

setPageCount

public void setPageCount(int n)

Sets the vertical page count

Parameters:

n - the vertical page count

getPageCount

public int getPageCount()

Returns the vertical page count

Returns:

the vertical page count

setCurrentPageAcross

public void setCurrentPageAcross(int n)

Sets the current horizontal page index

Parameters:

n - the current horizontal page index

getCurrentPageAcross

public int getCurrentPageAcross()

Returns the current horizontal page index

Returns:

the current horizontal page index

setPageAcrossCount

public void setPageAcrossCount(int n)

Sets the horizontal page count

Parameters:

n - the horizontal page count

getPageAcrossCount

public int getPageAcrossCount()

Returns the horizontal page count

Returns:

the horizontal page count

getOperators

public java.lang.String[] getOperators()

Returns the valid operators to use in the expression

Returns:

the array of the operators

getMethods

public java.lang.String[] getMethods()

Returns the valid methods to use in the expression

Returns:

the array of the method names