Examples of org.camunda.bpm.engine.impl.juel.ExpressionFactoryImpl

org.camunda.bpm.engine.impl.juel.ExpressionFactoryImpl

Expression factory implementation. This class is also used as an EL "service provider". The JUEL jar file specifies this class as el expression factory implementation in META-INF/services/javax.el.ExpressionFactory. Calling {@link ExpressionFactory#newInstance()} will then return an instance of this class, configured asdescribed below. If no properties are specified at construction time, properties are read from

If the file JAVA_HOME/lib/el.properties exists and if it contains property javax.el.ExpressionFactory whose value is the name of this class, these properties are taken as default properties.
Otherwise, if system property javax.el.ExpressionFactory is set to the name of this class, the system properties {@link System#getProperties()} are taken as default properties.
el.properties on your classpath. These properties override the properties from JAVA_HOME/lib/el.properties or {@link System#getProperties()}.

There are also constructors to explicitly pass in an instance of {@link Properties}. Having this, the following properties are read:

javax.el.cacheSize - cache size (int, default is 1000)
javax.el.methodInvocations - allow method invocations as in ${foo.bar(baz)} (boolean, default is false).
javax.el.nullProperties - resolve null properties as in ${foo[null]} (boolean, default is false).
javax.el.varArgs - support function/method calls using varargs (boolean, default is false).

@author Christoph Beck

 */
public abstract class ExpressionFactoryResolver {
  
  public static ExpressionFactory resolveExpressionFactory() {
    // Return instance of custom JUEL implementation
    return new ExpressionFactoryImpl();
  }

    this(null);
  }


  public ExpressionManager(Map<Object, Object> beans) {
    // Use the ExpressionFactoryImpl built-in version of juel, with parametrised method expressions enabled
    expressionFactory = new ExpressionFactoryImpl();
    this.beans = beans;
  }

    this(null);
  }


  public ExpressionManager(Map<Object, Object> beans) {
    // Use the ExpressionFactoryImpl built-in version of juel, with parametrised method expressions enabled
    expressionFactory = new ExpressionFactoryImpl();
    this.beans = beans;
  }

Examples of org.camunda.bpm.engine.impl.juel.ExpressionFactoryImpl

Related Classes of org.camunda.bpm.engine.impl.juel.ExpressionFactoryImpl