com.beasys.commerce.axiom.jsp.tags
Class IsNullTag

java.lang.Object
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  +--weblogic.utils.compiler.CodeGenerator
        |
        +--com.beasys.commerce.axiom.jsp.tags.AbstractTag
              |
              +--com.beasys.commerce.axiom.jsp.tags.ESAbstractTag
                    |
                    +--com.beasys.commerce.axiom.jsp.tags.IsNullTag

public class IsNullTag

extends ESAbstractTag

Evaluates the Object denoted by the provided id attribute, and exercises contained body code if the provided Object is null or if the Object's String representation is zero-length.

Inner classes inherited from class weblogic.utils.compiler.CodeGenerator

weblogic.utils.compiler.CodeGenerator.Output

Fields inherited from class weblogic.utils.compiler.CodeGenerator

NON_WORD_CHARS, targetDirectory, verboseCodegen

Constructor Summary

IsNullTag()

Method Summary

java.lang.String	id() Retrieves the value of the id attribute.
java.lang.String	processEndTag(java.lang.String tag, java.util.Properties props) Employed when the tag is closed within its JSP invocation.
java.lang.String	processStartTag(java.lang.String tag, java.util.Properties props) Employed when the tag is opened within its JSP invocation.

Methods inherited from class com.beasys.commerce.axiom.jsp.tags.ESAbstractTag

processTemplate

Methods inherited from class com.beasys.commerce.axiom.jsp.tags.AbstractTag

getDefaultValue, processTag, setJspContext, uniqueId

Methods inherited from class weblogic.utils.compiler.CodeGenerator

argumentLookup, baseConversion, buildString, classLookup, cleanup, date, ensureDir, exceptions, expandArrayClass, extractOptionValues, generate, generate, generate, generate, generateCode, generator, get_component_type, getFileChars, getProductionRule, getRootDirectoryName, getRuleName, installResource, is_primitive_array, javaCodeForType, lookupConvert, makeOutputStream, outputs, outputs, parameters, parse, prepare, primitive_type_array, primitive_type, processProductionRules, processTemplate, readLookup, rootDirectory, setRootDirectoryName, setTargetDirectory, targetFile, time, timeAndDate, type_array, writeLookup, year

Methods inherited from class java.lang.Object

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

Constructor Detail

IsNullTag

public IsNullTag()

Method Detail

id

public java.lang.String id()

Retrieves the value of the id attribute.

Returns:

the id attribute value.

See Also:

Extension Tag Documentation for the significance of this attribute.

processStartTag

public java.lang.String processStartTag(java.lang.String tag,
                                        java.util.Properties props)
                                 throws weblogic.servlet.jsp.JspExtensionException

Employed when the tag is opened within its JSP invocation.

Overrides:

processStartTag in class AbstractTag

Parameters:

tag - the tag name

properties - the properties passed to the tag, which result from the tag attributes used in its JSP invocation.

Returns:

resultant JSP code, inserted into the JSP file's _jspService method.

Throws:

weblogic.servlet.jsp.JspExtensionException -

processEndTag

public java.lang.String processEndTag(java.lang.String tag,
                                      java.util.Properties props)
                               throws weblogic.servlet.jsp.JspExtensionException

Employed when the tag is closed within its JSP invocation.

Overrides:

processEndTag in class AbstractTag

Parameters:

tag - the tag name

properties - the properties passed to the tag, which result from the tag attributes used in its JSP invocation.

Returns:

resultant JSP code, inserted into the JSP file's _jspService method.

Throws:

weblogic.servlet.jsp.JspExtensionException -