Class UndefinedNode
- java.lang.Object
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- org.apache.directory.api.ldap.model.filter.AbstractExprNode
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- org.apache.directory.api.ldap.model.filter.UndefinedNode
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public final class UndefinedNode extends AbstractExprNode
An empty class used for Undefined Nodes.- Version:
- $Rev$, $Date$
- Author:
- Apache Directory Project
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Field Summary
Fields Modifier and Type Field Description static UndefinedNode
UNDEFINED_NODE
A static instance of this node
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
accept(FilterVisitor visitor)
Element/node accept method for visitor pattern.boolean
isLeaf()
Tests to see if this node is a leaf or branch node.boolean
isSchemaAware()
Tells if this Node is Schema aware.String
toString()
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Methods inherited from class org.apache.directory.api.ldap.model.filter.AbstractExprNode
clone, equals, get, getAssertionType, hashCode, printRefinementToBuffer, set
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Field Detail
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UNDEFINED_NODE
public static final UndefinedNode UNDEFINED_NODE
A static instance of this node
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Method Detail
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isLeaf
public boolean isLeaf()
Tests to see if this node is a leaf or branch node. This implementation always returns false.- Returns:
- true if the node is a leaf,false otherwise
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accept
public Object accept(FilterVisitor visitor)
Element/node accept method for visitor pattern. This implementation always returns null.- Parameters:
visitor
- the filter expression tree structure visitor- Returns:
- the modified element
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isSchemaAware
public boolean isSchemaAware()
Tells if this Node is Schema aware.- Returns:
- true if the Node is SchemaAware
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toString
public String toString()
- Overrides:
toString
in classAbstractExprNode
- See Also:
Object.toString()
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