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• org.apache.xpath: Javadoc index of package org.apache.xpath.
Package Samples:
• org.apache.xpath.patterns: Implementation of XPath; for the most part, only classes meant for public use are found at this root level of the XPath packages.
• org.apache.xpath.functions
• org.apache.xpath.compiler
• org.apache.xpath.axes
• org.apache.xpath.res
• org.apache.xpath.operations
• org.apache.xpath.objects
• org.apache.xpath.domapi
Classes:
• XPathNamespaceImpl: The XPathNamespace interface is returned by XPathResult interfaces to represent the XPath namespace node type that DOM lacks. There is no public constructor for this node type. Attempts to place it into a hierarchy or a NamedNodeMap result in a DOMException with the code HIERARCHY_REQUEST_ERR . This node is read only, so methods or setting of attributes that would mutate the node result in a DOMException with the code NO_MODIFICATION_ALLOWED_ERR . The core specification describes attributes of the Node interface that are different for different node node types but does not describe XPATH_NAMESPACE_NODE ...
• NodeSetDTM: The NodeSetDTM class can act as either a NodeVector, NodeList, or NodeIterator. However, in order for it to act as a NodeVector or NodeList, it's required that setShouldCacheNodes(true) be called before the first nextNode() is called, in order that nodes can be added as they are fetched. Derived classes that implement iterators must override runTo(int index), in order that they may run the iteration to the given index. Note that we directly implement the DOM's NodeIterator interface. We do not emulate all the behavior of the standard NodeIterator. In particular, we do not guarantee to present a ...
• NodeSet: The NodeSet class can act as either a NodeVector, NodeList, or NodeIterator. However, in order for it to act as a NodeVector or NodeList, it's required that setShouldCacheNodes(true) be called before the first nextNode() is called, in order that nodes can be added as they are fetched. Derived classes that implement iterators must override runTo(int index), in order that they may run the iteration to the given index. Note that we directly implement the DOM's NodeIterator interface. We do not emulate all the behavior of the standard NodeIterator. In particular, we do not guarantee to present a "live ...
• CachedXPathAPI: The methods in this class are convenience methods into the low-level XPath API. These functions tend to be a little slow, since a number of objects must be created for each evaluation. A faster way is to precompile the XPaths using the low-level API, and then just use the XPaths over and over. This is an alternative for the old XPathAPI class, which provided static methods for the purpose but had the drawback of instantiating a new XPathContext (and thus building a new DTMManager, and new DTMs) each time it was called. XPathAPIObject instead retains its context as long as the object persists, reusing ...
• XPathEvaluatorImpl: The class provides an implementation of XPathEvaluator according to the DOM L3 XPath Specification, Working Draft 28, March 2002. See also the Document Object Model (DOM) Level 3 XPath Specification . The evaluation of XPath expressions is provided by XPathEvaluator , which will provide evaluation of XPath 1.0 expressions with no specialized extension functions or variables. It is expected that the XPathEvaluator interface will be implemented on the same object which implements the Document interface in an implementation which supports the XPath DOM module. XPathEvaluator implementations may be ...
• XPathVisitor: A derivation from this class can be passed to a class that implements the XPathVisitable interface, to have the appropriate method called for each component of the XPath. Aside from possible other uses, the main intention is to provide a reasonable means to perform expression rewriting. Each method has the form boolean visitComponentType(ExpressionOwner owner, ComponentType compType) . The ExpressionOwner argument is the owner of the component, and can be used to reset the expression for rewriting. If a method returns false, the sub hierarchy will not be traversed. This class is meant to be a base ...
• VariableSafeAbsRef: This is a "smart" variable reference that is used in situations where an absolute path is optimized into a variable reference, but may be used in some situations where the document context may have changed. For instance, in select="document(doc/@href)//name[//salary > 7250]", the root in the predicate will be different for each node in the set. While this is easy to detect statically in this case, in other cases static detection would be very hard or impossible. So, this class does a dynamic check to make sure the document context of the referenced variable is the same as the current document ...
• XPathAPI: The methods in this class are convenience methods into the low-level XPath API. These functions tend to be a little slow, since a number of objects must be created for each evaluation. A faster way is to precompile the XPaths using the low-level API, and then just use the XPaths over and over. NOTE: In particular, each call to this method will create a new XPathContext, a new DTMManager... and thus a new DTM. That's very safe, since it guarantees that you're always processing against a fully up-to-date view of your document. But it's also portentially very expensive, since you're rebuilding the ...
• OpCodes: Operations codes for XPath. Code for the descriptions of the operations codes: [UPPER CASE] indicates a literal value, [lower case] is a description of a value, ([length] always indicates the length of the operation, including the operations code and the length integer.) {UPPER CASE} indicates the given production, {description} is the description of a new production, (For instance, {boolean expression} means some expression that should be resolved to a boolean.) * means that it occurs zero or more times, + means that it occurs one or more times, ? means that it is optional. returns: indicates ...
• XPathResultImpl: The class provides an implementation XPathResult according to the DOM L3 XPath Specification, Working Draft 28, March 2002. See also the Document Object Model (DOM) Level 3 XPath Specification . The XPathResult interface represents the result of the evaluation of an XPath expression within the context of a particular node. Since evaluation of an XPath expression can result in various result types, this object makes it possible to discover and manipulate the type and value of the result. This implementation wraps an XObject .
• XPathNSResolverImpl: The class provides an implementation XPathNSResolver according to the DOM L3 XPath API Specification, Working Draft 28, March 2002. The XPathNSResolver interface permit prefix strings in the expression to be properly bound to namespaceURI strings. XPathEvaluator can construct an implementation of XPathNSResolver from a node, or the interface may be implemented by any application. See also the Document Object Model (DOM) Level 3 XPath Specification .
• ObjectFactory: This class is duplicated for each JAXP subpackage so keep it in sync. It is package private and therefore is not exposed as part of the JAXP API. This code is designed to implement the JAXP 1.1 spec pluggability feature and is designed to run on JDK version 1.1 and later, and to compile on JDK 1.2 and onward. The code also runs both as part of an unbundled jar file and when bundled as part of the JDK. This class was moved from the javax.xml.parsers.ObjectFactory class and modified to be used as a general utility for creating objects dynamically.
• ObjectFactory: This class is duplicated for each JAXP subpackage so keep it in sync. It is package private and therefore is not exposed as part of the JAXP API. This code is designed to implement the JAXP 1.1 spec pluggability feature and is designed to run on JDK version 1.1 and later, and to compile on JDK 1.2 and onward. The code also runs both as part of an unbundled jar file and when bundled as part of the JDK. This class was moved from the javax.xml.parsers.ObjectFactory class and modified to be used as a general utility for creating objects dynamically.
• Expression: This abstract class serves as the base for all expression objects. An Expression can be executed to return a org.apache.xpath.objects.XObject , normally has a location within a document or DOM, can send error and warning events, and normally do not hold state and are meant to be immutable once construction has completed. An exception to the immutibility rule is iterators and walkers, which must be cloned in order to be used -- the original must still be immutable.
• LocPathIterator: This class extends NodeSetDTM, which implements NodeIterator, and fetches nodes one at a time in document order based on a XPath LocationPath . If setShouldCacheNodes(true) is called, as each node is iterated via nextNode(), the node is also stored in the NodeVector, so that previousNode() can easily be done, except in the case where the LocPathIterator is "owned" by a UnionPathIterator, in which case the UnionPathIterator will cache the nodes.
• ExpressionNode: A class that implements this interface can construct expressions, give information about child and parent expressions, and give the originating source information. A class that implements this interface does not lay any claim to being directly executable. Note: This interface should not be considered stable. Only exprSetParent and exprGetParent can be counted on to work reliably. Work in progress.
• XPathExpressionImpl: The class provides an implementation of XPathExpression according to the DOM L3 XPath Specification, Working Draft 28, March 2002. See also the Document Object Model (DOM) Level 3 XPath Specification . The XPathExpression interface represents a parsed and resolved XPath expression.
• Function: This is a superclass of all XPath functions. This allows two ways for the class to be called. One method is that the super class processes the arguments and hands the results to the derived class, the other method is that the derived class may process it's own arguments, which is faster since the arguments don't have to be added to an array, but causes a larger code footprint.
• XPATHErrorResources_es: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
• XPATHErrorResources_sv: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
• XPATHErrorResources_zh_TW: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
• XPATHErrorResources_zh_CN: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
• XPATHErrorResources_sk: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
• XPATHErrorResources_ru: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
• XPATHErrorResources_ko: Set up error messages. We build a two dimensional array of message keys and message strings. In order to add a new message here, you need to first add a Static string constant for the Key and update the contents array with Key, Value pair Also you need to update the count of messages(MAX_CODE)or the count of warnings(MAX_WARNING) [ Information purpose only]
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