oracle.apps.fnd.appltest.diagfwk.engine.impl
Class ExpressionEvaluatorImpl

java.lang.Object
  oracle.apps.fnd.appltest.diagfwk.engine.impl.ExpressionEvaluatorImpl

All Implemented Interfaces:

ExpressionEvaluator

public class ExpressionEvaluatorImpl
extends java.lang.Object
implements ExpressionEvaluator

Since:

release specific (what release of product did this appear in)

Version:

$Header: ExpressionEvaluatorImpl.java 22-oct-2007.11:55:41 ppradhan Exp $

Author:

ppradhan

Field Summary

static java.lang.String	EXP_END Expression end token
static java.lang.String	EXP_START Expression start token
static java.lang.String	PATTERN_EXP Pattern - expression

Constructor Summary

ExpressionEvaluatorImpl()

Method Summary

boolean	isSingleToken(java.lang.String pExpr) Checks if the given expression is just a single token.
java.util.List<java.lang.String>	listTokens(java.lang.String pExpr) Pattern - for expression end token
java.lang.String	replaceToken(java.lang.String pExpr, java.lang.String pToken, java.lang.String pTokenValue) Replaces the given token in the given expression with the given value.

Methods inherited from class java.lang.Object

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

Field Detail

PATTERN_EXP

public static final java.lang.String PATTERN_EXP

Pattern - expression

See Also:

Constant Field Values

EXP_START

public static final java.lang.String EXP_START

Expression start token

See Also:

Constant Field Values

EXP_END

public static final java.lang.String EXP_END

Expression end token

See Also:

Constant Field Values

Constructor Detail

ExpressionEvaluatorImpl

public ExpressionEvaluatorImpl()

Method Detail

listTokens

public java.util.List<java.lang.String> listTokens(java.lang.String pExpr)

Pattern - for expression end token

Specified by:

listTokens in interface ExpressionEvaluator

Parameters:

pExpr - - a string that can be evaluated as an expression with references to other tokens.

Returns:

list of tokens expressed in the given expression

replaceToken

public java.lang.String replaceToken(java.lang.String pExpr,
                                     java.lang.String pToken,
                                     java.lang.String pTokenValue)

Description copied from interface: ExpressionEvaluator

Replaces the given token in the given expression with the given value.

Specified by:

replaceToken in interface ExpressionEvaluator

Parameters:

pExpr - - a string that can be evaluated as an expression with references to other tokens

pToken - - a token within the string

pTokenValue - - value for the token to be substituted.

Returns:

- returns resulting expression with the token substituted.

isSingleToken

public boolean isSingleToken(java.lang.String pExpr)

Description copied from interface: ExpressionEvaluator

Checks if the given expression is just a single token. For the expression to be single token it must contain a single token in the form of ${[token]} and nothing else.

Specified by:

isSingleToken in interface ExpressionEvaluator

Parameters:

pExpr - expression to check

Returns:

true if the given expression is just a single token. false otherwise.