FindBeanCollectionTag

Overview

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Class

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Deprecated

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SUMMARY:

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com.RuntimeCollective.webapps.tag
Class FindBeanCollectionTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      com.RuntimeCollective.webapps.tag.FindBeanCollectionTag

All Implemented Interfaces:: javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag

public final class FindBeanCollectionTag
extends javax.servlet.jsp.tagext.TagSupport

Finds a collection of EntityBean's given the bean type and a named query.

The tag uses reflection to call the static finder method for the query on the bean type. The naming convention for the finder method is:

public static Collection findQueryName();

Attributes:

name - the name of the collection to create.
scope - the scope in which to create the collection. [optional]
type - the subtype of the EntityBean in which the finder is defined.
query - the name of the query to be executed.

For example, the tag:

<rs:findBeans name="giraffes" type="com.RuntimeCollective.webapps.bean.Giraffe" query="femaleGiraffes" />

Would cause a collection called "giraffes" to be defined in page scope which contained the results of executing Giraffe.findFemaleGiraffes()

If an exception is thrown while trying execute the query, the error is logged and an empty collection is returned to the calling page.

Version:: $Id: FindBeanCollectionTag.java,v 1.3 2003/09/30 15:13:18 joe Exp $

Field Summary

private java.lang.String name


private java.lang.String query


private java.lang.String scope


private java.lang.String type


Fields inherited from class javax.servlet.jsp.tagext.TagSupport

id, pageContext

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

FindBeanCollectionTag()


Method Summary

int doStartTag()
          Execute the query and define the collection.

private java.lang.reflect.Method getFinder()


java.lang.String getName()
          get the name.

java.lang.String getQuery()
          get the query.

java.lang.String getScope()
          get the scope.

java.lang.String getType()
          get the type.

private void initialise()


private java.lang.String mangleMethodName()


void release()
          Release any acquired resources.

void setName(java.lang.String name)
          set the name.

void setQuery(java.lang.String query)
          set the query.

void setScope(java.lang.String scope)
          set the scope.

void setType(java.lang.String type)
          set the type.

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

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

Field Detail

name

private java.lang.String name

scope

private java.lang.String scope

type

private java.lang.String type

query

private java.lang.String query

Constructor Detail