Package com.espertech.esper.common.internal.epl.expression.ops

Class ExprArrayNode

java.lang.Object

com.espertech.esper.common.internal.epl.expression.core.ExprNodeBase

com.espertech.esper.common.internal.epl.expression.ops.ExprArrayNode

All Implemented Interfaces:

ExprNode, ExprNodeRenderable, ExprValidator

public class ExprArrayNode
extends ExprNodeBase

Represents an array in a filter expressiun tree.

Constructor Summary

Constructors

Constructor	Description
ExprArrayNode()	Ctor.

Method Summary

Modifier and Type	Method	Description
boolean	equalsNode(ExprNode node, boolean ignoreStreamPrefix)	Return true if a expression node semantically equals the current node, or false if not.
EPTypeClass	getComponentTypeCollection()
ExprEvaluator	getExprEvaluator()
ExprForge	getForge()
EPTypeClass	getOptionalRequiredType()
ExprPrecedenceEnum	getPrecedence()	Returns precedence.
boolean	isConstantResult()
void	setOptionalRequiredType(EPTypeClass optionalRequiredType)
void	toPrecedenceFreeEPL(StringWriter writer, ExprNodeRenderableFlags flags)
ExprNode	validate(ExprValidationContext validationContext)

Methods inherited from class com.espertech.esper.common.internal.epl.expression.core.ExprNodeBase

accept, accept, acceptChildnodes, addChildNode, addChildNodes, addChildNodeToFront, checkValidated, checkValidatedException, getChildNodes, replaceUnlistedChildNode, setChildNode, setChildNodes, toEPL

Methods inherited from class java.lang.Object

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

Constructor Details

ExprArrayNode

public ExprArrayNode()

Ctor.

Method Details

getExprEvaluator

public ExprEvaluator getExprEvaluator()

isConstantResult

public boolean isConstantResult()

getForge

public ExprForge getForge()

getComponentTypeCollection

public EPTypeClass getComponentTypeCollection()
                                       throws ExprValidationException

Throws:

ExprValidationException

validate

public ExprNode validate(ExprValidationContext validationContext)
                  throws ExprValidationException

Throws:

ExprValidationException

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer,
 ExprNodeRenderableFlags flags)

Specified by:

toPrecedenceFreeEPL in class ExprNodeBase

getPrecedence

public ExprPrecedenceEnum getPrecedence()

Description copied from interface: ExprNode

Returns precedence.

Returns:

precedence

equalsNode

public boolean equalsNode(ExprNode node,
 boolean ignoreStreamPrefix)

Description copied from interface: ExprNode

Return true if a expression node semantically equals the current node, or false if not.

Concrete implementations should compare the type and any additional information that impact the evaluation of a node.

Parameters:

node - to compare to

ignoreStreamPrefix - when the equals-comparison can ignore prefix of event properties

Returns:

true if semantically equal, or false if not equals

setOptionalRequiredType

public void setOptionalRequiredType(EPTypeClass optionalRequiredType)

getOptionalRequiredType

public EPTypeClass getOptionalRequiredType()