Package com.singularsys.jep.bigdecimal

Class BigDecOperatorTable

java.lang.Object

com.singularsys.jep.EmptyOperatorTable

com.singularsys.jep.OperatorTable2

com.singularsys.jep.standard.StandardOperatorTable2

com.singularsys.jep.bigdecimal.BigDecOperatorTable

All Implemented Interfaces:

FixedPrecisionFunctionI, JepComponent, OperatorTableI, Serializable

public class BigDecOperatorTable
extends StandardOperatorTable2
implements FixedPrecisionFunctionI

A set of operators for using BigDecimal numbers

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.singularsys.jep.OperatorTable2

OperatorTable2.BasicOperators, OperatorTable2.PsudoOperators, OperatorTable2.SpecialOperators

Nested classes/interfaces inherited from class com.singularsys.jep.EmptyOperatorTable

EmptyOperatorTable.OperatorKey

Constructor Summary

Constructors

Modifier	Constructor	Description
	BigDecOperatorTable(OperatorTable2 oldTable, MathContext mc)
	BigDecOperatorTable(OperatorTable2 oldTable, MathContext mc, int scale)
	BigDecOperatorTable(MathContext mc)
	BigDecOperatorTable(MathContext mc, boolean allowStrings)	Create an operator table specifying the math context and whether string operations can be used
	BigDecOperatorTable(MathContext mc, int scale)
	BigDecOperatorTable(MathContext mc, int scale, boolean allowStrings)	Create an operator table specifying the math context and whether string operations can be used
protected	BigDecOperatorTable(MathContext mc, int scale, Map<EmptyOperatorTable.OperatorKey,Operator> map)
protected	BigDecOperatorTable(MathContext mc, Map<EmptyOperatorTable.OperatorKey,Operator> map)

Method Summary

Modifier and Type	Method	Description
int	getDecimalPlaces()	Gets the number of decimal places used.
MathContext	getMathContext()
void	setAllowStrings(boolean allowStrings)	Sets the allowStrings flag of the operators.
protected void	setBasicPfmcs()	Sets the standard set of pfmc's for basic operators.
protected void	setBDPfmcs()
protected void	setBDPfmcs(int scale)
void	setDecimalPlaces(int scale)	Set the number of decimal digits used for fixed-point numbers
void	setMathContext(MathContext mc)
protected void	setSpecialPfmcs()	Sets the standard set of pfmcs for special operator: assignment, dot product, cross product, the list operator and the element-of operator.
OperatorTableI	shallowCopy()	Create a new version of this OperatorTable.

Methods inherited from class com.singularsys.jep.standard.StandardOperatorTable2

setPsudoPfmcs

Methods inherited from class com.singularsys.jep.OperatorTable2

getAdd, getAnd, getAssign, getCross, getDivide, getDot, getEle, getEQ, getGE, getGT, getLE, getList, getLT, getMod, getMultiply, getNE, getNop, getNot, getOr, getPower, getRange, getSubtract, getUDivide, getUMinus, getUPlus

Methods inherited from class com.singularsys.jep.EmptyOperatorTable

addOperator, addOperator, addOperator, appendOperator, appendOperator, entrySet, getAllOperatorsByName, getKey, getKeys, getLightWeightInstance, getNumOps, getOperator, getOperatorByName, getOperatorMap, getOperators, getOperatorsByName, getOperatorsBySymbol, init, insertOperator, insertOperator, keySet, removeOperator, removeOperator, replaceOperator, replaceOperator, setBinaryInverseOp, setDistributiveOver, setGroupOperatorRelations, setGroupOperatorRelations, setInverseOp, setPrecedenceTable, setRootOp, setStandardOperatorRelations, threadSafeMapCopy, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

BigDecOperatorTable

public BigDecOperatorTable(MathContext mc)

BigDecOperatorTable

public BigDecOperatorTable(OperatorTable2 oldTable,
 MathContext mc)

Parameters:

oldTable -

BigDecOperatorTable

public BigDecOperatorTable(MathContext mc,
 boolean allowStrings)

Create an operator table specifying the math context and whether string operations can be used

Parameters:

mc -

allowStrings - whether strings can be used.

Since:

3.4.0

BigDecOperatorTable

protected BigDecOperatorTable(MathContext mc,
 Map<EmptyOperatorTable.OperatorKey,Operator> map)

BigDecOperatorTable

public BigDecOperatorTable(MathContext mc,
 int scale)

BigDecOperatorTable

public BigDecOperatorTable(OperatorTable2 oldTable,
 MathContext mc,
 int scale)

Parameters:

oldTable -

BigDecOperatorTable

public BigDecOperatorTable(MathContext mc,
 int scale,
 boolean allowStrings)

Create an operator table specifying the math context and whether string operations can be used

Parameters:

mc -

allowStrings - whether strings can be used.

Since:

3.4.0

BigDecOperatorTable

protected BigDecOperatorTable(MathContext mc,
 int scale,
 Map<EmptyOperatorTable.OperatorKey,Operator> map)

Method Details

setBasicPfmcs

protected void setBasicPfmcs()

Description copied from class: StandardOperatorTable2

Sets the standard set of pfmc's for basic operators. This method is called by the constructor and subclasses can override this method to change or prevent building of these pfmcs.

Overrides:

setBasicPfmcs in class StandardOperatorTable2

See Also:

• OperatorTable2.BasicOperators

setSpecialPfmcs

protected void setSpecialPfmcs()

Description copied from class: StandardOperatorTable2

Sets the standard set of pfmcs for special operator: assignment, dot product, cross product, the list operator and the element-of operator. This method is called by the constructor and subclasses can override this method to change or prevent building of these pfmcs.

Overrides:

setSpecialPfmcs in class StandardOperatorTable2

See Also:

• OperatorTable2.SpecialOperators

setBDPfmcs

protected void setBDPfmcs()

setBDPfmcs

protected void setBDPfmcs(int scale)

getMathContext

public MathContext getMathContext()

setMathContext

public void setMathContext(MathContext mc)

setAllowStrings

public void setAllowStrings(boolean allowStrings)

Sets the allowStrings flag of the operators.

Parameters:

allowStrings -

Since:

3.4.0

shallowCopy

public OperatorTableI shallowCopy()

Description copied from class: EmptyOperatorTable

Create a new version of this OperatorTable. Operators are copied into new table. However, Operators whose pfmc implement JepComponent are duplicated. This means the table could be used in a separate thread without problem. Subclasses should override with method to return a table of the correct type, a typical implementation would be

@Override
public OperatorTableI shallowCopy() {
    Map<OperatorKey, Operator> map = this.threadSafeMapCopy();
    return new MyOperatorTable(map);
}

using the EmptyOperatorTable.threadSafeMapCopy() method to return a copy of the map of operators and a constructor taking this map which uses the EmptyOperatorTable(Map) constructor.

Specified by:

shallowCopy in interface OperatorTableI

Overrides:

shallowCopy in class StandardOperatorTable2

Returns:

a new Table

setDecimalPlaces

public void setDecimalPlaces(int scale)

Set the number of decimal digits used for fixed-point numbers

Specified by:

setDecimalPlaces in interface FixedPrecisionFunctionI

Parameters:

scale -

getDecimalPlaces

public int getDecimalPlaces()

Description copied from interface: FixedPrecisionFunctionI

Gets the number of decimal places used.

Specified by:

getDecimalPlaces in interface FixedPrecisionFunctionI

Returns:

either zero, a positive number or -1 for floating-point formats