Package net.sf.saxon.value

Class TextFragmentValue

  • All Implemented Interfaces:
    javax.xml.transform.Source, javax.xml.transform.SourceLocator, GroundedValue, Item, NodeInfo, Sequence, Location, org.xml.sax.Locator
    public final class TextFragmentValue
extends java.lang.Object
implements NodeInfo, javax.xml.transform.SourceLocator
    This class represents a temporary tree whose root document node owns a single text node.

    • Constructor Detail

      • TextFragmentValue

        public TextFragmentValue​(Configuration config,
                         java.lang.CharSequence value,
                         java.lang.String baseURI)
        Constructor: create a result tree fragment containing a single text node
        Parameters:
        config - the Saxon Configuration
        value - a String containing the value
        baseURI - the base URI of the document node

    • Method Detail

      • makeTextFragment

        public static NodeInfo makeTextFragment​(Configuration config,
                                        java.lang.CharSequence value,
                                        java.lang.String baseURI)
        Static factory method: create a result tree fragment containing a single text node, unless the text is zero length, in which case an empty document node is returned
        Parameters:
        config - the Saxon Configuration
        value - a String containing the value
        baseURI - the base URI of the document node

      • getTreeInfo

        public TreeInfo getTreeInfo()
        Get information about the tree to which this NodeInfo belongs
        Specified by:
        getTreeInfo in interface NodeInfo
        Returns:
        the TreeInfo
        Since:
        9.7

      • getRootNode

        public NodeInfo getRootNode()
        Get the NodeInfo object representing the document node at the root of the tree
        Returns:
        the document node

      • isTyped

        public boolean isTyped()
        Ask whether the document contains any nodes whose type annotation is anything other than UNTYPED
        Returns:
        true if the document contains elements whose type is other than UNTYPED

      • getNodeKind

        public final int getNodeKind()
        Return the type of node.
        Specified by:
        getNodeKind in interface NodeInfo
        Returns:
        Type.DOCUMENT (always)
        See Also:
        Type

      • getStringValueCS

        public java.lang.CharSequence getStringValueCS()
        Get the value of the item as a CharSequence. This is in some cases more efficient than the version of the method that returns a String.
        Specified by:
        getStringValueCS in interface GroundedValue
        Specified by:
        getStringValueCS in interface Item
        Returns:
        the string value of the item
        See Also:
        Item.getStringValue()

      • equals

        public boolean equals​(java.lang.Object other)
        Determine whether this is the same node as another node
        Specified by:
        equals in interface NodeInfo
        Overrides:
        equals in class java.lang.Object
        Parameters:
        other - the node to be compared with this node
        Returns:
        true if this Node object and the supplied Node object represent the same node in the tree.

      • hasFingerprint

        public boolean hasFingerprint()
        Ask whether this NodeInfo implementation holds a fingerprint identifying the name of the node in the NamePool. If the answer is true, then the getFingerprint() method must return the fingerprint of the node. If the answer is false, then the getFingerprint() method should throw an UnsupportedOperationException. In the case of unnamed nodes such as text nodes, the result can be either true (in which case getFingerprint() should return -1) or false (in which case getFingerprint may throw an exception).
        Specified by:
        hasFingerprint in interface NodeInfo
        Returns:
        true if the implementation of this node provides fingerprints.
        Since:
        9.8; previously Saxon relied on using FingerprintedNode as a marker interface.

      • generateId

        public void generateId​(FastStringBuffer buffer)
        Get a character string that uniquely identifies this node
        Specified by:
        generateId in interface NodeInfo
        Parameters:
        buffer - the buffer to contain the generated ID

      • setSystemId

        public void setSystemId​(java.lang.String systemId)
        Set the system ID (that is, the document URI property) for the document node.
        Specified by:
        setSystemId in interface javax.xml.transform.Source
        Throws:
        java.lang.UnsupportedOperationException - (always). This kind of tree does not have a document URI.

      • getSystemId

        public java.lang.String getSystemId()
        Get the system ID (the document URI) of the document node.
        Specified by:
        getSystemId in interface Location
        Specified by:
        getSystemId in interface org.xml.sax.Locator
        Specified by:
        getSystemId in interface NodeInfo
        Specified by:
        getSystemId in interface javax.xml.transform.Source
        Specified by:
        getSystemId in interface javax.xml.transform.SourceLocator
        Returns:
        the System Identifier of the entity in the source document containing the node, or null if not known or not applicable.

      • getBaseURI

        public java.lang.String getBaseURI()
        Get the base URI for the document node.
        Specified by:
        getBaseURI in interface NodeInfo
        Returns:
        the base URI of the node. This may be null if the base URI is unknown, including the case where the node has no parent.

      • compareOrder

        public int compareOrder​(NodeInfo other)
        Determine the relative position of this node and another node, in document order. The other node will always be in the same document.
        Specified by:
        compareOrder in interface NodeInfo
        Parameters:
        other - The other node, whose position is to be compared with this node
        Returns:
        -1 if this node precedes the other node, +1 if it follows the other node, or 0 if they are the same node. (In this case, isSameNode() will always return true, and the two nodes will produce the same result for generateId())

      • getFingerprint

        public int getFingerprint()
        Get the fingerprint of the node, used for matching names
        Specified by:
        getFingerprint in interface NodeInfo
        Returns:
        an integer fingerprint; two nodes with the same fingerprint have the same expanded QName. For unnamed nodes (text nodes, comments, document nodes, and namespace nodes for the default namespace), returns -1.

      • getPrefix

        public java.lang.String getPrefix()
        Get the prefix part of the name of this node. This is the name before the ":" if any.
        Specified by:
        getPrefix in interface NodeInfo
        Returns:
        the prefix part of the name. For an unnamed node, return "".

      • getURI

        public java.lang.String getURI()
        Get the URI part of the name of this node. This is the URI corresponding to the prefix, or the URI of the default namespace if appropriate.
        Specified by:
        getURI in interface NodeInfo
        Returns:
        The URI of the namespace of this node. For an unnamed node, or for an element or attribute in the default namespace, return an empty string.

      • getDisplayName

        public java.lang.String getDisplayName()
        Get the display name of this node. For elements and attributes this is [prefix:]localname. For unnamed nodes, it is an empty string.
        Specified by:
        getDisplayName in interface NodeInfo
        Returns:
        The display name of this node. For a node with no name, return an empty string.

      • getLocalPart

        public java.lang.String getLocalPart()
        Get the local name of this node.
        Specified by:
        getLocalPart in interface NodeInfo
        Returns:
        The local name of this node. For a node with no name, return "".

      • hasChildNodes

        public boolean hasChildNodes()
        Determine whether the node has any children.
        Specified by:
        hasChildNodes in interface NodeInfo
        Returns:
        true if this node has any attributes, false otherwise.

      • saveLocation

        public Location saveLocation()
        Get an immutable copy of this Location object. By default Location objects may be mutable, so they should not be saved for later use. The result of this operation holds the same location information, but in an immutable form.
        Specified by:
        saveLocation in interface Location
        Returns:
        an immutable copy (which may be the original object, if it is already immutable)

      • getSchemaType

        public SchemaType getSchemaType()
        Get the type annotation of this node, if any. The type annotation is represented as SchemaType object.

        Types derived from a DTD are not reflected in the result of this method.

        Specified by:
        getSchemaType in interface NodeInfo
        Returns:
        For element and attribute nodes: the type annotation derived from schema validation (defaulting to xs:untyped and xs:untypedAtomic in the absence of schema validation). For comments, text nodes, processing instructions, and namespaces: null. For document nodes, either xs:untyped if the document has not been validated, or xs:anyType if it has.
        Since:
        9.4

      • getDeclaredNamespaces

        public NamespaceBinding[] getDeclaredNamespaces​(NamespaceBinding[] buffer)
        Get all namespace undeclarations and undeclarations defined on this element.
        Specified by:
        getDeclaredNamespaces in interface NodeInfo
        Parameters:
        buffer - If this is non-null, and the result array fits in this buffer, then the result may overwrite the contents of this array, to avoid the cost of allocating a new array on the heap.
        Returns:
        An array of integers representing the namespace declarations and undeclarations present on this element. For a node other than an element, return null. Otherwise, the returned array is a sequence of namespace codes, whose meaning may be interpreted by reference to the name pool. The top half word of each namespace code represents the prefix, the bottom half represents the URI. If the bottom half is zero, then this is a namespace undeclaration rather than a declaration. The XML namespace is never included in the list. If the supplied array is larger than required, then the first unused entry will be set to -1.

        For a node other than an element, the method returns null.

      • getAllNamespaces

        public NamespaceMap getAllNamespaces()
        Get all the namespace bindings that are in-scope for this element.

        For an element return all the prefix-to-uri bindings that are in scope. This may include a binding to the default namespace (represented by a prefix of ""). It will never include "undeclarations" - that is, the namespace URI will never be empty; the effect of an undeclaration is to remove a binding from the in-scope namespaces, not to add anything.

        For a node other than an element, returns null.

        Specified by:
        getAllNamespaces in interface NodeInfo
        Returns:
        the in-scope namespaces for an element, or null for any other kind of node.

      • atomize

        public AtomicSequence atomize()
        Get the typed value.
        Specified by:
        atomize in interface Item
        Specified by:
        atomize in interface NodeInfo
        Returns:
        the typed value. If requireSingleton is set to true, the result will always be an AtomicValue. In other cases it may be a Value representing a sequence whose items are atomic values.
        Since:
        8.5

      • getAttributeValue

        public java.lang.String getAttributeValue​(java.lang.String uri,
                                          java.lang.String local)
        Get the string value of a given attribute of this node
        Specified by:
        getAttributeValue in interface NodeInfo
        Parameters:
        uri - the namespace URI of the attribute name. Supply the empty string for an attribute that is in no namespace
        local - the local part of the attribute name.
        Returns:
        the attribute value if it exists, or null if it does not exist. Always returns null if this node is not an element.
        Since:
        9.4

      • iterateAxis

        public AxisIterator iterateAxis​(int axisNumber)
        Return an iteration over the nodes reached by the given axis from this node
        Specified by:
        iterateAxis in interface NodeInfo
        Parameters:
        axisNumber - The axis to be iterated over
        Returns:
        a AxisIterator that scans the nodes reached by the axis in turn.
        See Also:
        AxisInfo

      • iterateAxis

        public AxisIterator iterateAxis​(int axisNumber,
                                java.util.function.Predicate<? super NodeInfo> nodeTest)
        Return an enumeration over the nodes reached by the given axis from this node
        Specified by:
        iterateAxis in interface NodeInfo
        Parameters:
        axisNumber - The axis to be iterated over
        nodeTest - A pattern to be matched by the returned nodes
        Returns:
        a AxisIterator that scans the nodes reached by the axis in turn.
        See Also:
        AxisInfo

      • getParent

        public NodeInfo getParent()
        Find the parent node of this node.
        Specified by:
        getParent in interface NodeInfo
        Returns:
        The Node object describing the containing element or root node.

      • getRoot

        public NodeInfo getRoot()
        Get the root node
        Specified by:
        getRoot in interface NodeInfo
        Returns:
        the NodeInfo representing the root of this tree

      • copy

        public void copy​(Receiver out,
                 int copyOptions,
                 Location locationId)
          throws XPathException
        Copy the result tree fragment value to a given Outputter
        Specified by:
        copy in interface NodeInfo
        Parameters:
        out - the Receiver to which the node should be copied. It is the caller's responsibility to ensure that this Receiver is open before the method is called (or that it is self-opening), and that it is closed after use.
        copyOptions - a selection of the options defined in CopyOptions
        locationId - If non-null, identifies the location of the instruction that requested this copy. If zero, indicates that the location information is not available
        Throws:
        XPathException - if any downstream error occurs

      • selectID

        public NodeInfo selectID​(java.lang.String id,
                         boolean getParent)
        Get the element with a given ID.
        Parameters:
        id - The unique ID of the required element
        getParent - True if, in the case of an element of type xs:ID, we want its parent
        Returns:
        null (this kind of tree contains no elements)

      • getUnparsedEntityNames

        public java.util.Iterator<java.lang.String> getUnparsedEntityNames()
        Get the list of unparsed entities defined in this document
        Returns:
        an Iterator, whose items are of type String, containing the names of all unparsed entities defined in this document. If there are no unparsed entities or if the information is not available then an empty iterator is returned

      • getUnparsedEntity

        public java.lang.String[] getUnparsedEntity​(java.lang.String name)
        Get the unparsed entity with a given name
        Parameters:
        name - the name of the entity
        Returns:
        the URI and public ID of the entity if there is one, or null if not