com.ibm.di.parser.xml
Class SimpleXPathEvaluator

java.lang.Object
  com.ibm.di.parser.xml.SimpleXPathEvaluator

public class SimpleXPathEvaluator
extends Object

This class is used for parsing the configuration parameters of the XML Parser2. After it compiles everything needed into an array it is used for matching elements found in the XML being parsed. Also this class keeps track of the elements that the XML Parser2 have entered in. Since XML Parser2 could be in only one mode (Input or Output) the THIS CLASS IS FOR INTERNAL USAGE ONLY! MAY CHANGE IN THE FUTURE!

Since:

7.0

Field Summary

static String	ELEMENT_SEPARATOR The character that separates each element in a path.
static byte	EXACT_MATCH_FOUND returned by the match(String, String, String) method and means that an exact match is found for the specified path
static byte	NO_MATCH_FOUND returned by the match(String, String, String) method and means that no match is found for the specified path
static byte	PARTIAL_MATCH_FOUND returned by the match(String, String, String) method and means that the provided element is part of the specified path
static String	PREFIX_LOCALNAME_SEPARATOR The character that separates the prefix from the local name in a regular element.
static String	WILDCARD The character that represents a QualifiedElementName or just an ElementName in the provided xpath string.

Constructor Summary

SimpleXPathEvaluator(String simpleXPath, String namespaceMap, String attributesDeclaration, String[] entryTag, Log log)
Constructor for the class.

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

NO_MATCH_FOUND

public static final byte NO_MATCH_FOUND

returned by the match(String, String, String) method and means that no match is found for the specified path

See Also:

Constant Field Values

EXACT_MATCH_FOUND

public static final byte EXACT_MATCH_FOUND

returned by the match(String, String, String) method and means that an exact match is found for the specified path

See Also:

Constant Field Values

PARTIAL_MATCH_FOUND

public static final byte PARTIAL_MATCH_FOUND

returned by the match(String, String, String) method and means that the provided element is part of the specified path

See Also:

Constant Field Values

WILDCARD

public static final String WILDCARD

The character that represents a QualifiedElementName or just an ElementName in the provided xpath string.

See Also:

Constant Field Values

ELEMENT_SEPARATOR

public static final String ELEMENT_SEPARATOR

The character that separates each element in a path.

See Also:

Constant Field Values

PREFIX_LOCALNAME_SEPARATOR

public static final String PREFIX_LOCALNAME_SEPARATOR

The character that separates the prefix from the local name in a regular element.

See Also:

Constant Field Values

Constructor Detail

SimpleXPathEvaluator

public SimpleXPathEvaluator(String simpleXPath,
                            String namespaceMap,
                            String attributesDeclaration,
                            String[] entryTag,
                            Log log)

Constructor for the class.

Parameters:

simpleXPath - - the Simple XPath String to compile.

namespaceMap - - the namespaceMap String to compile (e.g. prefix=namespaceURI).

attributesDeclaration - - the attributes declaration string.

entryTag - - the element that will be used to wrap each entry when writing. Used only for reference when parsing the Static Attribute Declarations. This parameter should be in one of the following forms: [null, "localName"], ["prefix", "localName"]. If null is passed then no wrapping will be done...

log - - the log object to use for logging.