Package com.singularsys.jep.misc.nullwrapper

Class NullWrappedFunctionTable

java.lang.Object

com.singularsys.jep.FunctionTable

com.singularsys.jep.misc.nullwrapper.NullWrappedFunctionTable

All Implemented Interfaces:

JepComponent, Serializable

public class NullWrappedFunctionTable
extends FunctionTable

A function table which wraps all the functions in an existing table.

Since:

3.4

Author:

Richard Morris

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.singularsys.jep.FunctionTable

table

Constructor Summary

Constructors

Modifier	Constructor	Description
	NullWrappedFunctionTable(FunctionTable root)	Create a new function table which wraps all the functions in the original table.
	NullWrappedFunctionTable(FunctionTable root, NullWrappedFunctionFactory factory)	A table where a specific NullWrapperFunctionFactory is defined.
protected	NullWrappedFunctionTable(FunctionTable root, NullWrappedFunctionFactory factory, Map<String,PostfixMathCommandI> tbl)

Method Summary

Modifier and Type	Method	Description
PostfixMathCommandI	addFunction(String name, PostfixMathCommandI pfmc)
FunctionTable	shallowCopy()	Returns a new shallow copy of this function table.

Methods inherited from class com.singularsys.jep.FunctionTable

clear, containsKey, containsValue, entrySet, getFunction, getLightWeightInstance, init, isEmpty, keySet, remove, size, threadSafeMapCopy, toString, values

Methods inherited from class java.lang.Object

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

Constructor Details

NullWrappedFunctionTable

public NullWrappedFunctionTable(FunctionTable root)

Create a new function table which wraps all the functions in the original table. For each function in the original it will first call NullWrappedFunctionFactory.getWrappedFunction(PostfixMathCommandI) to find the appropriate function.

Parameters:

root - the original table

NullWrappedFunctionTable

protected NullWrappedFunctionTable(FunctionTable root,
 NullWrappedFunctionFactory factory,
 Map<String,PostfixMathCommandI> tbl)

NullWrappedFunctionTable

public NullWrappedFunctionTable(FunctionTable root,
 NullWrappedFunctionFactory factory)

A table where a specific NullWrapperFunctionFactory is defined.

Parameters:

root -

factory -

Method Details

addFunction

public PostfixMathCommandI addFunction(String name,
 PostfixMathCommandI pfmc)

Overrides:

addFunction in class FunctionTable

shallowCopy

public FunctionTable shallowCopy()

Description copied from class: FunctionTable

Returns a new shallow copy of this function table. Calls the FunctionTable.threadSafeMapCopy() method to ensure the table is safe to use a separate thread. All subclasses should override this method to create a function table of the matching type. A typical implementation would be

          @Override
          public FunctionTable shallowCopy() {
              Map<String,PostfixMathCommandI> newMap = this.threadSafeMapCopy();
        return new myFunctionTable(newMap);
          }
 

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

Overrides:

shallowCopy in class FunctionTable

Returns:

a new shallow copy of this function table