public class TagData extends Object implements Cloneable
TagData is only used as an argument to the isValid, validate, and getVariableInfo methods of TagExtraInfo, which are invoked at translation time.
| Modifier and Type | Field and Description |
|---|---|
static Object |
REQUEST_TIME_VALUE
Distinguished value for an attribute to indicate its value
is a request-time expression (which is not yet available because
TagData instances are used at translation-time).
|
| Constructor and Description |
|---|
TagData(Hashtable<String,Object> attrs)
Constructor for a TagData.
|
TagData(Object[][] atts)
Constructor for TagData.
|
| Modifier and Type | Method and Description |
|---|---|
Object |
getAttribute(String attName)
The value of the attribute.
|
Enumeration<String> |
getAttributes()
Enumerates the attributes.
|
String |
getAttributeString(String attName)
Get the value for a given attribute.
|
String |
getId()
The value of the tag's id attribute.
|
void |
setAttribute(String attName,
Object value)
Set the value of an attribute.
|
public static final Object REQUEST_TIME_VALUE
public TagData(Object[][] atts)
A typical constructor may be
static final Object[][] att = {{"connection", "conn0"}, {"id", "query0"}};
static final TagData td = new TagData(att);
All values must be Strings except for those holding the
distinguished object REQUEST_TIME_VALUE.atts - the static attribute and values. May be null.public String getId()
public Object getAttribute(String attName)
attName - the name of the attributepublic void setAttribute(String attName, Object value)
attName - the name of the attributevalue - the value.public String getAttributeString(String attName)
attName - the name of the attributeClassCastException - if attribute value is not a Stringpublic Enumeration<String> getAttributes()
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