java.lang.Object
javax.servlet.jsp.tagext.TagLibraryValidator
org.apache.taglibs.standard.tlv.JstlBaseTLV
org.apache.taglibs.standard.tlv.JstlCoreTLV
- public class JstlCoreTLV
- extends JstlBaseTLV
A SAX-based TagLibraryValidator for the core JSTL tag library.
Currently implements the following checks:
- Expression syntax validation.
- Choose / when / otherwise constraints
- Tag bodies that must either be empty or non-empty given
particular attributes. (E.g., cannot have a body when
'value' is specified; it *must* have a body otherwise.) For
these purposes, "having a body" refers to non-whitespace
content inside the tag.
- Other minor constraints.
|
Nested Class Summary |
private class |
JstlCoreTLV.Handler
The handler that provides the base of our implementation. |
| Fields inherited from class org.apache.taglibs.standard.tlv.JstlBaseTLV |
APPLICATION_SCOPE, config, failed, JSP, lastElementId, messageVector, PAGE_SCOPE, prefix, REQUEST_SCOPE, SCOPE, SESSION_SCOPE, TYPE_CORE, TYPE_FMT, TYPE_SQL, TYPE_XML, uri, VAR |
| Methods inherited from class org.apache.taglibs.standard.tlv.JstlBaseTLV |
fail, getLocalPart, hasAttribute, hasDanglingScope, hasEmptyVar, hasNoInvalidScope, isCoreTag, isFmtTag, isJspTag, isSpecified, isSqlTag, isTag, isXmlTag, release, validate, validateExpression, vmFromString, vmFromVector |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CHOOSE
private final java.lang.String CHOOSE
- See Also:
- Constant Field Values
WHEN
private final java.lang.String WHEN
- See Also:
- Constant Field Values
OTHERWISE
private final java.lang.String OTHERWISE
- See Also:
- Constant Field Values
EXPR
private final java.lang.String EXPR
- See Also:
- Constant Field Values
SET
private final java.lang.String SET
- See Also:
- Constant Field Values
IMPORT
private final java.lang.String IMPORT
- See Also:
- Constant Field Values
URL
private final java.lang.String URL
- See Also:
- Constant Field Values
REDIRECT
private final java.lang.String REDIRECT
- See Also:
- Constant Field Values
PARAM
private final java.lang.String PARAM
- See Also:
- Constant Field Values
TEXT
private final java.lang.String TEXT
- See Also:
- Constant Field Values
VALUE
private final java.lang.String VALUE
- See Also:
- Constant Field Values
DEFAULT
private final java.lang.String DEFAULT
- See Also:
- Constant Field Values
VAR_READER
private final java.lang.String VAR_READER
- See Also:
- Constant Field Values
IMPORT_WITH_READER
private final java.lang.String IMPORT_WITH_READER
- See Also:
- Constant Field Values
IMPORT_WITHOUT_READER
private final java.lang.String IMPORT_WITHOUT_READER
- See Also:
- Constant Field Values
JstlCoreTLV
public JstlCoreTLV()
validate
public javax.servlet.jsp.tagext.ValidationMessage[] validate(java.lang.String prefix,
java.lang.String uri,
javax.servlet.jsp.tagext.PageData page)
- Description copied from class:
javax.servlet.jsp.tagext.TagLibraryValidator
- Validate a JSP page.
This will get invoked once per unique tag library URI in the
XML view. This method will return null if the page is valid; otherwise
the method should return an array of ValidationMessage objects.
An array of length zero is also interpreted as no errors.
getHandler
protected org.xml.sax.helpers.DefaultHandler getHandler()
- Specified by:
getHandler in class JstlBaseTLV
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