com.xmlmind.xml.validate

Class AttributeUtil

java.lang.Object

com.xmlmind.xml.validate.AttributeUtil

public final class AttributeUtil
extends Object

Utilities making use of AttributeDefaultValue and PreserveSpaceDefaultValue.

Method Summary

Modifier and Type	Method and Description
static String	getAttribute(Element element, Name name, AttributeDefaultValue defaultValue) Returns value of specified attribute.
static String	getSpaceAttribute(Element element) Equivalent to getAttribute(element, Name.XML_SPACE, PreserveSpaceDefaultValue.INSTANCE).
static boolean	hasPreserveSpace(Element element) Returns true if whitespace must be preserved in specified element.
static String	lookupAttribute(Element element, Name[] attrNames, AttributeDefaultValue defaultValue) Same as lookupAttribute(Element, Name, AttributeDefaultValue) expect that this method searches any of the specified attributes.
static String	lookupAttribute(Element element, Name attrName, AttributeDefaultValue defaultValue) Searches specified attribute in specified element and all its ancestors.

Methods inherited from class java.lang.Object

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

Method Detail

getAttribute

public static String getAttribute(Element element,
                                  Name name,
                                  AttributeDefaultValue defaultValue)

Returns value of specified attribute. Returns null if this attribute is not found.

Parameters:

element - element which is searched for specified attribute

name - name of attribute

defaultValue - an object which is queried when the element does not contain specified attribute. May be null.

Returns:

value of specified attribute or null

lookupAttribute

public static String lookupAttribute(Element element,
                                     Name attrName,
                                     AttributeDefaultValue defaultValue)

Searches specified attribute in specified element and all its ancestors. Returns null if this attribute is not found.

Parameters:

element - element which is searched for specified attribute

attrName - name of searched attribute

defaultValue - an object which is queried when the element does not contain specified attribute. May be null.

Returns:

value of specified attribute or null

lookupAttribute

public static String lookupAttribute(Element element,
                                     Name[] attrNames,
                                     AttributeDefaultValue defaultValue)

Same as lookupAttribute(Element, Name, AttributeDefaultValue) expect that this method searches any of the specified attributes.

getSpaceAttribute

public static String getSpaceAttribute(Element element)

Equivalent to getAttribute(element, Name.XML_SPACE, PreserveSpaceDefaultValue.INSTANCE).

See Also:

PreserveSpaceDefaultValue

hasPreserveSpace

public static boolean hasPreserveSpace(Element element)

Returns true if whitespace must be preserved in specified element. Returns false otherwise.

Searches specified element and all its ancestors using lookupAttribute(element, Name.XML_SPACE, PreserveSpaceDefaultValue.INSTANCE).

See Also:

PreserveSpaceDefaultValue