mondrian.web.taglib
Class QueryTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.tagext.BodyTagSupport
          mondrian.web.taglib.QueryTag

All Implemented Interfaces:

Serializable, javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

public class QueryTag
extends javax.servlet.jsp.tagext.BodyTagSupport

A QueryTag creates a ResultCache object and initializes it with the MDX query. Example:

<query name="query1" resultCache="true">
 select
   {[Measures].[Unit Sales], [Measures].[Store Cost]} on columns,
   CrossJoin(
     { [Promotion Media].[Radio],
       [Promotion Media].[TV],
       [Promotion Media].[Sunday Paper],
       [Promotion Media].[Street Handout] },
     [Product].[Drink].children) on rows
 from Sales
 where ([Time].[1997])
 </query>

Attributes are name, resultCache.

Author:

Andreas Voss, 22 March, 2002

See Also:

Serialized Form

Field Summary

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

bodyContent

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

id, pageContext

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

EVAL_BODY_BUFFERED, EVAL_BODY_TAG

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

QueryTag()

Method Summary

int	doAfterBody()
String	getName()
boolean	isResultCache()
void	setName(String newName) Sets string attribute name, which identifies this query within its page.
void	setResultCache(boolean newResultCache) Sets boolean attribute resultCache; if true, the query is parsed, executed, and converted to an XML document at most once.

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

doEndTag, doInitBody, doStartTag, getBodyContent, getPreviousOut, release, setBodyContent

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

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

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

getParent, setPageContext, setParent

Constructor Detail

QueryTag

public QueryTag()

Method Detail

doAfterBody

public int doAfterBody()
                throws javax.servlet.jsp.JspException

Specified by:

doAfterBody in interface javax.servlet.jsp.tagext.IterationTag

Overrides:

doAfterBody in class javax.servlet.jsp.tagext.BodyTagSupport

Throws:

javax.servlet.jsp.JspException

setName

public void setName(String newName)

Sets string attribute name, which identifies this query within its page. The <transform query> attribute uses this.

getName

public String getName()

setResultCache

public void setResultCache(boolean newResultCache)

Sets boolean attribute resultCache; if true, the query is parsed, executed, and converted to an XML document at most once. This improves performance and consistency, but the results may become out of date. We also need a way to prevent the cache using too much memory.

isResultCache

public boolean isResultCache()