com.espertech.esper.common.internal.epl.rowrecog.expr

Class RowRecogExprNode

java.lang.Object

com.espertech.esper.common.internal.epl.rowrecog.expr.RowRecogExprNode

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

RowRecogExprNodeAlteration, RowRecogExprNodeAtom, RowRecogExprNodeConcatenation, RowRecogExprNodeNested, RowRecogExprNodePermute

public abstract class RowRecogExprNode
extends Object
implements Serializable

Base node for

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RowRecogExprNode() Constructor creates a list of child nodes.

Method Summary

Modifier and Type	Method and Description
void	accept(RowRecogExprNodeVisitor visitor)
void	acceptChildnodes(RowRecogExprNodeVisitor visitor, RowRecogExprNode parent, int level)
void	addChildNode(RowRecogExprNode childNode) Adds a child node.
void	dumpDebug(String prefix) Recursively print out all nodes.
List<RowRecogExprNode>	getChildNodes() Returns list of child nodes.
abstract RowRecogExprNodePrecedenceEnum	getPrecedence()
void	replaceChildNode(RowRecogExprNode nodeToReplace, List<RowRecogExprNode> replacementNodes)
void	toEPL(StringWriter writer, RowRecogExprNodePrecedenceEnum parentPrecedence)
abstract void	toPrecedenceFreeEPL(StringWriter writer)

Methods inherited from class java.lang.Object

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

Constructor Detail

RowRecogExprNode

public RowRecogExprNode()

Constructor creates a list of child nodes.

Method Detail

getPrecedence

public abstract RowRecogExprNodePrecedenceEnum getPrecedence()

toPrecedenceFreeEPL

public abstract void toPrecedenceFreeEPL(StringWriter writer)

toEPL

public final void toEPL(StringWriter writer,
                        RowRecogExprNodePrecedenceEnum parentPrecedence)

addChildNode

public final void addChildNode(RowRecogExprNode childNode)

Adds a child node.

Parameters:

childNode - is the child evaluation tree node to add

getChildNodes

public final List<RowRecogExprNode> getChildNodes()

Returns list of child nodes.

Returns:

list of child nodes

dumpDebug

public final void dumpDebug(String prefix)

Recursively print out all nodes.

Parameters:

prefix - is printed out for naming the printed info

accept

public void accept(RowRecogExprNodeVisitor visitor)

acceptChildnodes

public void acceptChildnodes(RowRecogExprNodeVisitor visitor,
                             RowRecogExprNode parent,
                             int level)

replaceChildNode

public void replaceChildNode(RowRecogExprNode nodeToReplace,
                             List<RowRecogExprNode> replacementNodes)