propstring.java

java开源的企业总线.xmlBlaster

/*------------------------------------------------------------------------------
Name:      PropString.java
Project:   xmlBlaster.org
Copyright: xmlBlaster.org, see xmlBlaster-LICENSE file
------------------------------------------------------------------------------*/
package org.xmlBlaster.util.property;

/**
 * Base class for the various property data type implementations. 
 * @author [e-mail]
 */
public final class PropString extends PropEntry implements java.io.Serializable, Cloneable
{
   private static final long serialVersionUID = 1L;
   private String valueDefault; // Remember default setting for usage output etc.
   private String value;

   /**
    * Constructor for the default value
    */
   public PropString(String value) {
      super(null);
      this.valueDefault = value;
      this.value = value;
   }

   /**
    * Constructor for the default value
    */
   public PropString(String propName, String value) {
      super(propName);
      this.value = value;
   }

   /**
    * @return "String"
    */
   public final String getTypeString() {
      return "String";
   }

   /**
    * @return The value in String form, null is supported
    */
   public final String getValueString() {
      return this.value;
   }

   public void setValue(String value) {
      this.value = value;
      super.creationOrigin = CREATED_BY_SETTER;
   }

   /**
    * @param creationOrigin e.g. PropEntry.CREATED_BY_JVMENV
    */
   public void setValue(String value, int creationOrigin) {
      this.value = value;
      super.creationOrigin = creationOrigin;
   }

   public String getValue() {
      return this.value;
   }

   /**
    * Overwrite the default value given to the constructor. 
    */
   public void setDefaultValue(String value) {
      this.valueDefault = value;
      if (CREATED_BY_DEFAULT == super.creationOrigin) {
         this.value = value; // overwrite the default setting
      }
   }

   public String getDefaultValue() {
      return this.valueDefault;
   }

   /**
    * Returns a shallow clone, you can change savely all basic or immutable types
    * like boolean, String, int.
    * Currently RouteInfo is not cloned (so don't change it)
    */
   public Object clone() {
      return super.clone();
   }

   /** java org.xmlBlaster.util.property.PropString */
   public static void main(String[] args) {
      PropString dummy = new PropString("propName", null);
      System.out.println(dummy.toXml());
   }
}