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## net.sf.saxon.pattern
Class IntersectPattern

    java.lang.Object
      net.sf.saxon.pattern.Pattern
          net.sf.saxon.pattern.VennPattern
              net.sf.saxon.pattern.IntersectPattern

All Implemented Interfaces:
  Serializable, SourceLocator, Container, PatternFinder

    public class IntersectPattern

extends VennPattern

A pattern formed as the difference of two other patterns

See Also:
  Serialized Form

Field Summary

Fields inherited from class net.sf.saxon.pattern.VennPattern
`p1, p2`

Constructor Summary
`IntersectPattern(Pattern p1, Pattern p2)` Constructor

Method Summary
`boolean` | `equals(Object other)` Determine whether this pattern is the same as another pattern
`int` | `hashCode()` Hashcode supporting equals()
`boolean` | `matches(Item item, XPathContext context)` Determine if the supplied node matches the pattern
`boolean` | `matchesBeneathAnchor(NodeInfo node, NodeInfo anchor, XPathContext context)` Determine whether this pattern matches a given Node within the subtree rooted at a given anchor node.

Methods inherited from class net.sf.saxon.pattern.VennPattern
`allocateSlots, analyze, gatherComponentPatterns, getDependencies, getItemType, getLHS, getNodeKind, getRHS, iterateSubExpressions, promote, replaceSubExpression, resolveCurrent, setExecutable, setLineNumber, setOriginalText, setSystemId, simplify`

Methods inherited from class net.sf.saxon.pattern.Pattern
`getColumnNumber, getContainerGranularity, getDefaultPriority, getExecutable, getFingerprint, getHostLanguage, getLineNumber, getLocationProvider, getPublicId, getSystemId, internalMatches, make, selectNodes, toString`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

### IntersectPattern

    public IntersectPattern(Pattern p1,
                            Pattern p2)

  Constructor

  Parameters:
    `p1` - the left-hand operand
    `p2` - the right-hand operand

Method Detail

### matches

    public boolean matches(Item item,
                           XPathContext context)
                    throws XPathException

  Determine if the supplied node matches the pattern

  Specified by:
    `matches` in class `Pattern`
  Parameters:
    `item` - the node to be compared
    `context` - The dynamic context. Only relevant if the pattern uses variables, or contains calls on functions such as document() or key().
  Returns:
    true if the node matches either of the operand patterns
  Throws:
    `XPathException`

### matchesBeneathAnchor

    public boolean matchesBeneathAnchor(NodeInfo node,
                                        NodeInfo anchor,
                                        XPathContext context)
                                 throws XPathException

  Determine whether this pattern matches a given Node within the subtree rooted at a given anchor node. This method is used when the pattern is used for streaming.

  Overrides:
    `matchesBeneathAnchor` in class `Pattern`
  Parameters:
    `node` - The NodeInfo representing the Element or other node to be tested against the Pattern
    `anchor` - The anchor node, which must match any AnchorPattern subpattern
    `context` - The dynamic context. Only relevant if the pattern uses variables, or contains calls on functions such as document() or key().
  Returns:
    true if the node matches the Pattern, false otherwise
  Throws:
    `XPathException`

### equals

    public boolean equals(Object other)

  Determine whether this pattern is the same as another pattern

  Overrides:
    `equals` in class `VennPattern`
  Parameters:
    `other` - the other object

### hashCode

    public int hashCode()

  Hashcode supporting equals()

  Overrides:
    `hashCode` in class `VennPattern`

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Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.