de.tsl2.nano.util.operation

Class ConditionOperator<T>

java.lang.Object

de.tsl2.nano.util.parser.Parser<INPUT>

de.tsl2.nano.util.operation.Operator<CharSequence,T>

de.tsl2.nano.util.operation.SOperator<T>

de.tsl2.nano.util.operation.ConditionOperator<T>

All Implemented Interfaces:

IParser<CharSequence>

Direct Known Subclasses:

NumericConditionOperator

public class ConditionOperator<T>
extends SOperator<T>

Input: string holding boolean expressions. conditional execution

Version:

$Revision$

Author:

Tom

Field Summary

Fields

Modifier and Type	Field and Description
static String	KEY_ANY
static String	KEY_ELSE
static String	KEY_EQUALS
static String	KEY_THEN

Fields inherited from class de.tsl2.nano.util.operation.Operator

KEY_BEGIN, KEY_BETWEEN, KEY_CONCAT, KEY_EMPTY, KEY_END, KEY_HIGH_OPERATION, KEY_OPERAND, KEY_OPERATION, KEY_RESULT, KEY_TERM, KEY_TERM_ENCLOSED

Constructor Summary

Constructors

Constructor and Description
ConditionOperator() constructor
ConditionOperator(Map<CharSequence,T> values) constructor

Method Summary

Modifier and Type	Method and Description
protected IConverter<CharSequence,T>	createConverter()
protected void	createOperations() define all possible operations. see Operator.operationDefs. should set value for Operator.KEY_OPERATION in Operator.syntax, too!
T	eval(CharSequence expression) eval
protected BooleanOperator	getOp()
protected CharSequence	precalc(CharSequence expression) may do some pre calculations. override this method to do them.

Methods inherited from class de.tsl2.nano.util.operation.SOperator

concat, createSyntax, createTermSyntax_NEW_ALTERNIVE13062015, createTermSyntax, extract, replace, subElement, subEnclosing, trim, unwrap, wrap

Methods inherited from class de.tsl2.nano.util.operation.Operator

addOperation, addValue, encloseInBrackets, eval, getValue, getValues, newOperand, operate, reset, resultEstablished, syntax, toString

Methods inherited from class de.tsl2.nano.util.parser.Parser

extract, isEmpty

Methods inherited from class java.lang.Object

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

Field Detail

KEY_THEN

public static final String KEY_THEN

See Also:

Constant Field Values

KEY_ELSE

public static final String KEY_ELSE

See Also:

Constant Field Values

KEY_EQUALS

public static final String KEY_EQUALS

See Also:

Constant Field Values

KEY_ANY

public static final String KEY_ANY

See Also:

Constant Field Values

Constructor Detail

ConditionOperator

public ConditionOperator()

constructor

ConditionOperator

public ConditionOperator(Map<CharSequence,T> values)

constructor

Parameters:

inputClass -

converter -

values -

Method Detail

getOp

protected BooleanOperator getOp()

createConverter

protected IConverter<CharSequence,T> createConverter()

createOperations

protected void createOperations()

Description copied from class: Operator

define all possible operations. see Operator.operationDefs. should set value for Operator.KEY_OPERATION in Operator.syntax, too!

Specified by:

createOperations in class Operator<CharSequence,T>

eval

public T eval(CharSequence expression)

Description copied from class: Operator

eval

Overrides:

eval in class Operator<CharSequence,T>

Returns:

precalc

protected CharSequence precalc(CharSequence expression)

may do some pre calculations. override this method to do them.

Parameters:

expression - expression to be prepared

Returns:

result of pre calculations