cascading.operation.xml
Class XPathFilter

java.lang.Object
  cascading.operation.BaseOperation
      cascading.operation.xml.XPathOperation
          cascading.operation.xml.XPathFilter

All Implemented Interfaces:

Filter, Operation, Serializable

public class XPathFilter
extends XPathOperation
implements Filter

XPathFilter will filter out a Tuple if the given XPath expression returns false. Set removeMatch to true if the filter should be reversed.

See Also:

Serialized Form

Field Summary

Fields inherited from class cascading.operation.xml.XPathOperation

NAMESPACE_XHTML, namespaces, paths

Fields inherited from class cascading.operation.BaseOperation

fieldDeclaration, numArgs, trace

Fields inherited from interface cascading.operation.Operation

ANY

Constructor Summary

XPathFilter(boolean removeMatch, String[][] namespaces, String path)
Constructor XPathFilter creates a new XPathFilter instance.

XPathFilter(String[][] namespaces, String path)
Constructor XPathFilter creates a new XPathFilter instance.

Method Summary

boolean

isRemove(FlowProcess flowProcess, FilterCall filterCall) Method isRemove returns true if input should be removed from the tuple stream.

Methods inherited from class cascading.operation.xml.XPathOperation

getExpressions, getTransformer, getXPath, writeAsXML

Methods inherited from class cascading.operation.BaseOperation

cleanup, getFieldDeclaration, getNumArgs, getTrace, prepare, printOperationInternal, toString, toStringInternal

Methods inherited from class java.lang.Object

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

Methods inherited from interface cascading.operation.Operation

cleanup, getFieldDeclaration, getNumArgs, prepare

Constructor Detail

XPathFilter

public XPathFilter(String[][] namespaces,
                   String path)

Constructor XPathFilter creates a new XPathFilter instance.

Parameters:

namespaces - of type String[][]

path - of type String

XPathFilter

public XPathFilter(boolean removeMatch,
                   String[][] namespaces,
                   String path)

Constructor XPathFilter creates a new XPathFilter instance.

Parameters:

removeMatch - of type boolean

namespaces - of type String[][]

path - of type String

Method Detail

isRemove

public boolean isRemove(FlowProcess flowProcess,
                        FilterCall filterCall)

Description copied from interface: Filter

Method isRemove returns true if input should be removed from the tuple stream.

Specified by:

isRemove in interface Filter

Parameters:

flowProcess - of type FlowProcess

filterCall - of type FilterCall

Returns:

boolean

See Also:

Filter.isRemove(cascading.flow.FlowProcess,cascading.operation.FilterCall)