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java.lang.Objectnet.esper.pattern.EvalNodeNumber
public class EvalNodeNumber
A node number assigned to evaluation nodes in a tree-structure.
Represents node numbers as an array of short. Root nodes get an empty array while each level of child node adds an element. New child nodes are obtained from a parent and subsequent child nodes from the last sibling node.
Constructor Summary | |
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EvalNodeNumber()
Constructs a root node number. |
Method Summary | |
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boolean |
equals(Object o)
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short |
getChildNumber()
Returns the child number. |
short[] |
getNumber()
Returns the node number representation in an array of short. |
EvalNodeNumber |
getParentNumber()
Returns the parent's node number, of null if this is the root node number. |
int |
hashCode()
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boolean |
isRoot()
Returns true for a root node, false for child nodes. |
EvalNodeNumber |
newChildNumber()
Returns a new child node number. |
EvalNodeNumber |
newSiblingNumber()
Returns a new sibling node number based on the current node. |
String |
toString()
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Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public EvalNodeNumber()
Method Detail |
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public short getChildNumber()
public boolean isRoot()
public EvalNodeNumber getParentNumber()
public EvalNodeNumber newChildNumber()
public EvalNodeNumber newSiblingNumber()
public String toString()
toString
in class Object
public short[] getNumber()
public boolean equals(Object o)
equals
in class Object
public int hashCode()
hashCode
in class Object
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