Fields Summary |
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public static final short | ANY_TYPEThis code does not represent a specific type. An evaluation of an XPath
expression will never produce this type. If this type is requested,
then the evaluation returns whatever type naturally results from
evaluation of the expression.
If the natural result is a node set when ANY_TYPE was
requested, then UNORDERED_NODE_ITERATOR_TYPE is always
the resulting type. Any other representation of a node set must be
explicitly requested. |
public static final short | NUMBER_TYPEThe result is a number as defined by . Document modification does not
invalidate the number, but may mean that reevaluation would not yield
the same number. |
public static final short | STRING_TYPEThe result is a string as defined by . Document modification does not
invalidate the string, but may mean that the string no longer
corresponds to the current document. |
public static final short | BOOLEAN_TYPEThe result is a boolean as defined by . Document modification does not
invalidate the boolean, but may mean that reevaluation would not
yield the same boolean. |
public static final short | UNORDERED_NODE_ITERATOR_TYPEThe result is a node set as defined by that will be accessed
iteratively, which may not produce nodes in a particular order.
Document modification invalidates the iteration.
This is the default type returned if the result is a node set and
ANY_TYPE is requested. |
public static final short | ORDERED_NODE_ITERATOR_TYPEThe result is a node set as defined by that will be accessed
iteratively, which will produce document-ordered nodes. Document
modification invalidates the iteration. |
public static final short | UNORDERED_NODE_SNAPSHOT_TYPEThe result is a node set as defined by that will be accessed as a
snapshot list of nodes that may not be in a particular order.
Document modification does not invalidate the snapshot but may mean
that reevaluation would not yield the same snapshot and nodes in the
snapshot may have been altered, moved, or removed from the document. |
public static final short | ORDERED_NODE_SNAPSHOT_TYPEThe result is a node set as defined by that will be accessed as a
snapshot list of nodes that will be in original document order.
Document modification does not invalidate the snapshot but may mean
that reevaluation would not yield the same snapshot and nodes in the
snapshot may have been altered, moved, or removed from the document. |
public static final short | ANY_UNORDERED_NODE_TYPEThe result is a node set as defined by and will be accessed as a
single node, which may be null if the node set is empty.
Document modification does not invalidate the node, but may mean that
the result node no longer corresponds to the current document. This
is a convenience that permits optimization since the implementation
can stop once any node in the in the resulting set has been found.
If there are more than one node in the actual result, the single
node returned might not be the first in document order. |
public static final short | FIRST_ORDERED_NODE_TYPEThe result is a node set as defined by and will be accessed as a
single node, which may be null if the node set is empty.
Document modification does not invalidate the node, but may mean that
the result node no longer corresponds to the current document. This
is a convenience that permits optimization since the implementation
can stop once the first node in document order of the resulting set
has been found.
If there are more than one node in the actual result, the single
node returned will be the first in document order. |
Methods Summary |
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public boolean | getBooleanValue()The value of this boolean result.
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public boolean | getInvalidIteratorState()Signifies that the iterator has become invalid. True if
resultType is UNORDERED_NODE_ITERATOR_TYPE
or ORDERED_NODE_ITERATOR_TYPE and the document has been
modified since this result was returned.
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public double | getNumberValue()The value of this number result. If the native double type of the DOM
binding does not directly support the exact IEEE 754 result of the
XPath expression, then it is up to the definition of the binding
binding to specify how the XPath number is converted to the native
binding number.
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public short | getResultType()A code representing the type of this result, as defined by the type
constants.
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public org.w3c.dom.Node | getSingleNodeValue()The value of this single node result, which may be null .
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public int | getSnapshotLength()The number of nodes in the result snapshot. Valid values for
snapshotItem indices are 0 to
snapshotLength-1 inclusive.
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public java.lang.String | getStringValue()The value of this string result.
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public org.w3c.dom.Node | iterateNext()Iterates and returns the next node from the node set or
null if there are no more nodes.
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public org.w3c.dom.Node | snapshotItem(int index)Returns the index th item in the snapshot collection. If
index is greater than or equal to the number of nodes in
the list, this method returns null . Unlike the iterator
result, the snapshot does not become invalid, but may not correspond
to the current document if it is mutated.
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