net.ontopia.topicmaps.nav2.taglibs.tolog
Class QueryExecutingTag

java.lang.Object
  extended by javax.servlet.jsp.tagext.TagSupport
      extended by javax.servlet.jsp.tagext.BodyTagSupport
          extended by net.ontopia.topicmaps.nav2.taglibs.tolog.QueryExecutingTag
All Implemented Interfaces:
Serializable, javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag
Direct Known Subclasses:
IfTag, SetTag

public abstract class QueryExecutingTag
extends javax.servlet.jsp.tagext.BodyTagSupport

INTERNAL: Generic Tolog Tag that has support for executing one query.

See Also:
Serialized Form

Field Summary
protected  String[] columnNames
           
protected  ContextManagerIF contextManager
           
protected  String query
           
protected  QueryResultIF queryResult
           
 
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
QueryExecutingTag()
          Default constructor.
 
Method Summary
protected  void bindVariables()
          Bind the variables of a result set to the current row.
 int doAfterBody()
          Print the body content to the enclosing writer.
 int doEndTag()
          return EVAL_PAGE by default.
 int doStartTag()
          Process the start tag for this instance.
 String getQuery()
           
protected  QueryResultIF getQueryResult()
           
 void release()
          Resets the state of the Tag.
 void setQuery(String query)
           
 
Methods inherited from class javax.servlet.jsp.tagext.BodyTagSupport
doInitBody, getBodyContent, getPreviousOut, 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
 

Field Detail

columnNames

protected String[] columnNames

contextManager

protected ContextManagerIF contextManager

queryResult

protected QueryResultIF queryResult

query

protected String query
Constructor Detail

QueryExecutingTag

public QueryExecutingTag()
Default constructor.

Method Detail

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspTagException
Process the start tag for this instance. Post: queryResult and columnNames have values, but nothing is done to them. It is up to the child class to make use of these. Returns EVAL_BODY_BUFFERED by default.

Specified by:
doStartTag in interface javax.servlet.jsp.tagext.Tag
Overrides:
doStartTag in class javax.servlet.jsp.tagext.BodyTagSupport
Throws:
javax.servlet.jsp.JspTagException

getQuery

public String getQuery()
Returns:
a reference to the tag attribute parameter query.

getQueryResult

protected QueryResultIF getQueryResult()

bindVariables

protected void bindVariables()
                      throws javax.servlet.jsp.JspTagException
Bind the variables of a result set to the current row.

Throws:
javax.servlet.jsp.JspTagException

doAfterBody

public int doAfterBody()
                throws javax.servlet.jsp.JspTagException
Print the body content to the enclosing writer. Return SKIP_BODY by default.

Specified by:
doAfterBody in interface javax.servlet.jsp.tagext.IterationTag
Overrides:
doAfterBody in class javax.servlet.jsp.tagext.BodyTagSupport
Throws:
javax.servlet.jsp.JspTagException

doEndTag

public int doEndTag()
             throws javax.servlet.jsp.JspException
return EVAL_PAGE by default.

Specified by:
doEndTag in interface javax.servlet.jsp.tagext.Tag
Overrides:
doEndTag in class javax.servlet.jsp.tagext.BodyTagSupport
Throws:
javax.servlet.jsp.JspException

release

public void release()
Resets the state of the Tag.

Specified by:
release in interface javax.servlet.jsp.tagext.Tag
Overrides:
release in class javax.servlet.jsp.tagext.BodyTagSupport

setQuery

public void setQuery(String query)


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