Package com.singularsys.extensions.lambda

Class LambdaOperatorTable

java.lang.Object

com.singularsys.jep.EmptyOperatorTable

com.singularsys.jep.OperatorTable2

com.singularsys.jep.standard.StandardOperatorTable2

com.singularsys.extensions.lambda.LambdaOperatorTable

All Implemented Interfaces:

JepComponent, OperatorTableI, Serializable

Direct Known Subclasses:

ChainedOperatorTable

public class LambdaOperatorTable
extends StandardOperatorTable2

An OperatorTable that defines the lambda definition operator x => x^2, the optional range operator [1..5], the optinal send to operator x^2 -> y, and optional ternary operator code ? x : y. The main symbols used are defined in the constructor, the symbols list brackets and ternary operators are set in the properties file.

Since:

Jep 4.1 extensions 2.2

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	LambdaOperatorTable.LambdaOperators	Keys to identify the lambda operators.

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
	LambdaOperatorTable(OperatorTable2 oldTable, String lambdaDefSymbol, String rangeSymbol, String sendToSymbol, boolean hasTernary)	A decorator constructor.
	LambdaOperatorTable(OperatorTable2 oldTable, String lambdaDefSymbol, String rangeSymbol, String sendToSymbol, boolean hasTernary, FieldI field)	A decorator constructor with a specified field.
	LambdaOperatorTable(String lambdaDefSymbol, String rangeSymbol, String sendToSymbol, boolean hasTernary)	Constructor with specified symbols.
	LambdaOperatorTable(String lambdaDefSymbol, String rangeSymbol, String sendToSymbol, boolean hasTernary, FieldI field)	Constructor with specified symbols using a given field.
protected	LambdaOperatorTable(Map<EmptyOperatorTable.OperatorKey,Operator> map)

Method Summary

Modifier and Type	Method	Description
Operator	getLambdaDef()
Operator	getSendTo()
TernaryOperator	getTernary()
protected void	setBasicPfmcs()	Override to prevent the pfmc being changed in decorator constructor.
protected void	setPsudoPfmcs()	Override to prevent the pfmc being changed in decorator constructor.
protected void	setSpecialPfmcs()	Override to prevent the pfmc being changed in decorator constructor.
OperatorTableI	shallowCopy()	Create a new version of this OperatorTable.

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

LambdaOperatorTable

public LambdaOperatorTable(String lambdaDefSymbol,
 String rangeSymbol,
 String sendToSymbol,
 boolean hasTernary)

Constructor with specified symbols. Defining the lambda definition operator x => x^2 the range operator [1..5] the send to operator x^2 -> y and whether the ternary operator code ? x : y is defined. The symbols list brackets and ternary operators are set in the properties file.

Parameters:

lambdaDefSymbol - string used to represent lambda definition operator, typically =>.

rangeSymbol - string used to represent range operator, typically ... If null then no range operator is added.

sendToSymbol - string used to represent send to operator, typically ->. If null then no send to operator is added.

hasTernary - if true then a ternary conditional operator is added with symbol "cond ? :"

LambdaOperatorTable

public LambdaOperatorTable(String lambdaDefSymbol,
 String rangeSymbol,
 String sendToSymbol,
 boolean hasTernary,
 FieldI field)

Constructor with specified symbols using a given field. Defining the lambda definition operator x => x^2 the range operator [1..5] the send to operator x^2 -> y and whether the ternary operator code ? x : y is defined. The symbols list brackets and ternary operators are set in the properties file.

Parameters:

lambdaDefSymbol - string used to represent lambda definition operator, typically =>.

rangeSymbol - string used to represent range operator, typically ... If null then no range operator is added.

sendToSymbol - string used to represent send to operator, typically ->. If null then no send to operator is added.

hasTernary - if true then a ternary conditional operator is added with symbol "cond ? :"

field - the field to use for the range operator. If null then a default LambdaRange is used.

LambdaOperatorTable

public LambdaOperatorTable(OperatorTable2 oldTable,
 String lambdaDefSymbol,
 String rangeSymbol,
 String sendToSymbol,
 boolean hasTernary)

A decorator constructor. Takes all the operators supplied in the oldTable and add extra bitwise operations.

Parameters:

oldTable - table with most operators.

lambdaDefSymbol - string used to represent lambda definition operator, typically =>.

rangeSymbol - string used to represent range operator, typically ... If null then no range operator is added.

sendToSymbol - string used to represent send to operator, typically ->. If null then no send to operator is added.

hasTernary - if true then a ternary conditional operator is added with symbol "cond ? :"

LambdaOperatorTable

protected LambdaOperatorTable(Map<EmptyOperatorTable.OperatorKey,Operator> map)

LambdaOperatorTable

public LambdaOperatorTable(OperatorTable2 oldTable,
 String lambdaDefSymbol,
 String rangeSymbol,
 String sendToSymbol,
 boolean hasTernary,
 FieldI field)

A decorator constructor with a specified field. Takes all the operators supplied in the oldTable and add extra bitwise operations.

Parameters:

oldTable - table with most operators.

lambdaDefSymbol - string used to represent lambda definition operator, typically =>.

rangeSymbol - string used to represent range operator, typically ... If null then no range operator is added.

sendToSymbol - string used to represent send to operator, typically ->. If null then no send to operator is added.

hasTernary - if true then a ternary conditional operator is added with symbol "cond ? :"

field - the field to use for the range operator. If null then a default LambdaRange is used.

Method Details

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

setBasicPfmcs

protected void setBasicPfmcs()

Override to prevent the pfmc being changed in decorator constructor.

Overrides:

setBasicPfmcs in class StandardOperatorTable2

See Also:

• OperatorTable2.BasicOperators

setSpecialPfmcs

protected void setSpecialPfmcs()

Override to prevent the pfmc being changed in decorator constructor.

Overrides:

setSpecialPfmcs in class StandardOperatorTable2

See Also:

• OperatorTable2.SpecialOperators

setPsudoPfmcs

protected void setPsudoPfmcs()

Override to prevent the pfmc being changed in decorator constructor.

Overrides:

setPsudoPfmcs in class StandardOperatorTable2

getLambdaDef

public Operator getLambdaDef()

getSendTo

public Operator getSendTo()

getTernary

public TernaryOperator getTernary()