Package io.vertigo.commons.impl.script

Class ScriptManagerImpl

java.lang.Object

io.vertigo.commons.impl.script.ScriptManagerImpl

All Implemented Interfaces:

ScriptManager, io.vertigo.core.node.component.Component, io.vertigo.core.node.component.CoreComponent, io.vertigo.core.node.component.Manager

public final class ScriptManagerImpl
extends Object
implements ScriptManager

This manager allows you to script a text. Some expressions can be used inside the text. These expressions will be parsed and evaluated.

Author:

pchretien

Constructor Summary

Constructors

Constructor	Description
ScriptManagerImpl(ExpressionEvaluatorPlugin expressionEvaluatorPlugin)	Constructor.

Method Summary

Modifier and Type	Method	Description
<J> J	evaluateExpression(String expression, List<ExpressionParameter> parameters, Class<J> type)	Evaluates an expression.
String	evaluateScript(String script, SeparatorType separatorType, List<ExpressionParameter> parameters)	Evaluates the script, transforms a script into a text.
void	parse(String script, ScriptParserHandler scriptHandler, ScriptSeparator separator)	Parses the script with a specific handler.

Methods inherited from class java.lang.Object

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

Constructor Details

ScriptManagerImpl

@Inject
public ScriptManagerImpl(ExpressionEvaluatorPlugin expressionEvaluatorPlugin)

Constructor.

Parameters:

expressionEvaluatorPlugin - the plugin used to evaluate an expression

Method Details

parse

public void parse(String script,
 ScriptParserHandler scriptHandler,
 ScriptSeparator separator)

Parses the script with a specific handler. the grammar is defined by simple tags balises (separators).

Specified by:

parse in interface ScriptManager

Parameters:

script - the script to analyse

scriptHandler - the hander

separator - the allowed separators in the grammar.

evaluateScript

public String evaluateScript(String script,
 SeparatorType separatorType,
 List<ExpressionParameter> parameters)

Evaluates the script, transforms a script into a text.

Specified by:

evaluateScript in interface ScriptManager

Parameters:

script - the script

separatorType - the type of separator

parameters - the parameters

Returns:

the evaluated script as a simplet text

evaluateExpression

public <J> J evaluateExpression(String expression,
 List<ExpressionParameter> parameters,
 Class<J> type)

Evaluates an expression. Examples of expressions written in java - name - birthDate - age>20 - salary>5000 invalid input: '&'invalid input: '&' age invalid input: '<'30 - name + surName

Specified by:

evaluateExpression in interface ScriptManager

Parameters:

expression - the expression

parameters - the parameters

type - the returned type

Returns:

the evaluated expression