Update of /cvsroot/displaytag/display09/src/org/displaytag/decorator
In directory sc8-pr-cvs1:/tmp/cvs-serv14366/src/org/displaytag/decorator
Modified Files:
ColumnDecorator.java Decorator.java TableDecorator.java
Log Message:
added utility methods to decorator, moved something to tabledecorator
Index: ColumnDecorator.java
===================================================================
RCS file:
/cvsroot/displaytag/display09/src/org/displaytag/decorator/ColumnDecorator.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** ColumnDecorator.java 21 Jun 2003 12:34:49 -0000 1.1
--- ColumnDecorator.java 15 Jul 2003 21:49:24 -0000 1.2
***************
*** 1,4 ****
--- 1,6 ----
package org.displaytag.decorator;
+ import org.displaytag.exception.DecoratorException;
+
/**
* <p>A simple "decorator" for column values</p>
***************
*** 8,24 ****
public abstract class ColumnDecorator
{
- /**
- * empty costructor for ColumnDecorator
- */
- public ColumnDecorator()
- {
- super();
- }
/**
! * Method decorate
! * @param pColumnValue Object
! * @return String
*/
! public abstract String decorate(Object pColumnValue);
}
--- 10,21 ----
public abstract class ColumnDecorator
{
/**
! * Method called to decorate the underlining object
! * @param pColumnValue Object to decorate
! * @return String decorated object
! * @throws DecoratorException for exceptions
*/
! public abstract String decorate(Object pColumnValue) throws DecoratorException;
!
}
Index: Decorator.java
===================================================================
RCS file: /cvsroot/displaytag/display09/src/org/displaytag/decorator/Decorator.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** Decorator.java 22 Jun 2003 16:16:25 -0000 1.2
--- Decorator.java 15 Jul 2003 21:49:24 -0000 1.3
***************
*** 1,10 ****
package org.displaytag.decorator;
import javax.servlet.jsp.PageContext;
/**
* <p>This class provides some basic functionality for all objects which serve
* as decorators for the objects in the List being displayed.<p>
! * <p>Decorator should never be subclasse directly. Use TableDecorator instead</p>
* @author mraible
* @version $Revision$ ($Author$)
--- 1,15 ----
package org.displaytag.decorator;
+ import java.beans.PropertyDescriptor;
+ import java.util.HashMap;
+
import javax.servlet.jsp.PageContext;
+ import org.apache.commons.beanutils.PropertyUtils;
+
/**
* <p>This class provides some basic functionality for all objects which serve
* as decorators for the objects in the List being displayed.<p>
! * <p>Decorator should never be subclassed directly. Use TableDecorator instead</p>
* @author mraible
* @version $Revision$ ($Author$)
***************
*** 14,107 ****
/**
! * Field mPageContext
! */
! private PageContext mPageContext= null;
!
! /**
! * Field mCollection
*/
! private Object mCollection= null;
/**
! * Field mObject
! */
! private Object mObject= null;
! /**
! * Field mViewIndex
! */
! private int mViewIndex= -1;
! /**
! * Field mListIndex
*/
! private int mListIndex= -1;
/**
! * Method getObject
! * @return Object
*/
! public Object getObject()
! {
! return mObject;
! }
/**
! * Method getViewIndex
! * @return int
*/
! public int getViewIndex()
{
! return mViewIndex;
}
/**
! * Method getListIndex
! * @return int
*/
! public int getListIndex()
{
! return mListIndex;
}
/**
! * Method getPageContext
! * @return PageContext
*/
! public PageContext getPageContext()
{
! return mPageContext;
}
/**
! * Method init
! * @param pPageContext PageContext
! * @param pList Object
*/
! public void init(PageContext pPageContext, Object pList)
{
! mPageContext= pPageContext;
! mCollection= pList;
}
/**
! * Method initRow
! * @param pObject Object
! * @param pViewIndex int
! * @param pListIndex int
*/
! public void initRow(Object pObject, int pViewIndex, int pListIndex)
{
! mObject= pObject;
! mViewIndex= pViewIndex;
! mListIndex= pListIndex;
}
/**
! * Method finish
*/
! public void finish()
{
! mPageContext= null;
! mCollection= null;
! mObject= null;
}
--- 19,118 ----
/**
! * page context
*/
! private PageContext mPageContext;
/**
! * property info cache
*/
! private static HashMap lPropertyMap = new HashMap();
/**
! * decorated object. Usually a List
*/
! private Object mDecoratedObject;
/**
! * Method init
! * @param pPageContext PageContext
! * @param pDecoratedObject decorated object (usually a list)
*/
! public void init(PageContext pPageContext, Object pDecoratedObject)
{
! mPageContext = pPageContext;
! mDecoratedObject = pDecoratedObject;
}
/**
! * returns the page context
! * @return PageContext
*/
! public PageContext getPageContext()
{
! return mPageContext;
}
/**
! * returns the decorated object
! * @return Object
*/
! public Object getDecoratedObject()
{
! return mDecoratedObject;
}
/**
! * Method called at the end of evaluation
*/
! public void finish()
{
! mPageContext = null;
! mDecoratedObject = null;
}
/**
! * look for a getter for the given property using introspection
! * @param pPropertyName name of the property to check
! * @return boolean true if the decorator has a getter for the given property
*/
! public boolean searchGetterFor(String pPropertyName)
{
! PropertyDescriptor[] lDescriptors =
PropertyUtils.getPropertyDescriptors(getClass());
!
! // iterate on property descriptors
! for (int lCount = 0; lCount < lDescriptors.length; lCount++)
! {
! if (pPropertyName.equals(lDescriptors[lCount].getName()))
! {
! return true;
! }
! }
!
! return false;
}
/**
! * Check if a getter exists for a given property. Uses cached info if property
has already been requested
! * @param pPropertyName name of the property to check
! * @return boolean true if the decorator has a getter for the given property
*/
! public boolean hasGetterFor(String pPropertyName)
{
! Boolean lCachedResult;
!
! if ((lCachedResult = (Boolean) lPropertyMap.get(pPropertyName)) !=
null)
! {
! return lCachedResult.booleanValue();
! }
!
! // not already cached... check
! boolean lHasGetter = searchGetterFor(pPropertyName);
!
! // save in cache
! lPropertyMap.put(pPropertyName, new Boolean(lHasGetter));
!
! // and return
! return lHasGetter;
!
}
Index: TableDecorator.java
===================================================================
RCS file:
/cvsroot/displaytag/display09/src/org/displaytag/decorator/TableDecorator.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** TableDecorator.java 22 Jun 2003 16:16:25 -0000 1.2
--- TableDecorator.java 15 Jul 2003 21:49:24 -0000 1.3
***************
*** 7,10 ****
--- 7,55 ----
public abstract class TableDecorator extends Decorator
{
+ /**
+ * Field mObject
+ */
+ private Object mCurrentRowObject;
+
+ /**
+ * Field mViewIndex
+ */
+ private int mViewIndex = -1;
+
+ /**
+ * Field mListIndex
+ */
+ private int mListIndex = -1;
+
+ /**
+ * Method getViewIndex
+ * @return int
+ */
+ public int getViewIndex()
+ {
+ return mViewIndex;
+ }
+
+ /**
+ * Method getListIndex
+ * @return int
+ */
+ public int getListIndex()
+ {
+ return mListIndex;
+ }
+
+ /**
+ * Method initRow
+ * @param pObject Object
+ * @param pViewIndex int
+ * @param pListIndex int
+ */
+ public void initRow(Object pObject, int pViewIndex, int pListIndex)
+ {
+ mCurrentRowObject = pObject;
+ mViewIndex = pViewIndex;
+ mListIndex = pListIndex;
+ }
/**
***************
*** 24,27 ****
--- 69,90 ----
{
return "";
+ }
+
+ /**
+ * Method called at the end of evaluation
+ */
+ public void finish()
+ {
+ mCurrentRowObject = null;
+ super.finish();
+ }
+
+ /**
+ * Returns the currentRowObject.
+ * @return Object
+ */
+ public Object getCurrentRowObject()
+ {
+ return mCurrentRowObject;
}
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