Package com.espertech.esper.common.client.soda

Class PatternObserverExpr

java.lang.Object

com.espertech.esper.common.client.soda.EPBaseNamedObject

com.espertech.esper.common.client.soda.PatternObserverExpr

All Implemented Interfaces:

PatternExpr, Serializable

public class PatternObserverExpr
extends EPBaseNamedObject
implements PatternExpr

Pattern observer expression observes occurances such as timer-at (crontab) and timer-interval.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
PatternObserverExpr()	Ctor.
PatternObserverExpr(String namespace, String name, Expression[] parameters)	Ctor - for use to create a pattern expression tree, without pattern child expression.
PatternObserverExpr(String namespace, String name, List<Expression> parameters)	Ctor - for use to create a pattern expression tree, without pattern child expression.

Method Summary

Modifier and Type	Method	Description
List<PatternExpr>	getChildren()	Returns the list of pattern sub-expressions (child expressions) to the current pattern expression node.
PatternExprPrecedenceEnum	getPrecedence()	Returns the precedence.
String	getTreeObjectName()	Returns the id for the pattern expression, for use by tools.
void	setChildren(List<PatternExpr> children)	Sets the list of pattern sub-expressions (child expressions) to the current pattern expression node.
void	setTreeObjectName(String treeObjectName)	Sets and id for the pattern expression, for use by tools.
void	toEPL(StringWriter writer, PatternExprPrecedenceEnum parentPrecedence, EPStatementFormatter formatter)	Renders the pattern expression and all it's child expressions, in full tree depth, as a string in language syntax.
void	toPrecedenceFreeEPL(StringWriter writer)	Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Methods inherited from class com.espertech.esper.common.client.soda.EPBaseNamedObject

getName, getNamespace, getParameters, setName, setNamespace, setParameters, toEPL

Methods inherited from class java.lang.Object

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

Constructor Details

PatternObserverExpr

public PatternObserverExpr()

Ctor.

PatternObserverExpr

public PatternObserverExpr(String namespace,
 String name,
 Expression[] parameters)

Ctor - for use to create a pattern expression tree, without pattern child expression.

Parameters:

namespace - is the guard object namespace

name - is the guard object name

parameters - is guard object parameters

PatternObserverExpr

public PatternObserverExpr(String namespace,
 String name,
 List<Expression> parameters)

Ctor - for use to create a pattern expression tree, without pattern child expression.

Parameters:

namespace - is the guard object namespace

name - is the guard object name

parameters - is guard object parameters

Method Details

setChildren

public void setChildren(List<PatternExpr> children)

Description copied from interface: PatternExpr

Sets the list of pattern sub-expressions (child expressions) to the current pattern expression node.

Specified by:

setChildren in interface PatternExpr

Parameters:

children - pattern child expressions or empty list if there are no child expressions

getTreeObjectName

public String getTreeObjectName()

Description copied from interface: PatternExpr

Returns the id for the pattern expression, for use by tools.

Specified by:

getTreeObjectName in interface PatternExpr

Returns:

id

setTreeObjectName

public void setTreeObjectName(String treeObjectName)

Description copied from interface: PatternExpr

Sets and id for the pattern expression, for use by tools.

Specified by:

setTreeObjectName in interface PatternExpr

Parameters:

treeObjectName - id

getChildren

public List<PatternExpr> getChildren()

Description copied from interface: PatternExpr

Returns the list of pattern sub-expressions (child expressions) to the current pattern expression node.

Specified by:

getChildren in interface PatternExpr

Returns:

pattern child expressions or empty list if there are no child expressions

getPrecedence

public PatternExprPrecedenceEnum getPrecedence()

Description copied from interface: PatternExpr

Returns the precedence.

Specified by:

getPrecedence in interface PatternExpr

Returns:

precedence

toEPL

public void toEPL(StringWriter writer,
 PatternExprPrecedenceEnum parentPrecedence,
 EPStatementFormatter formatter)

Description copied from interface: PatternExpr

Renders the pattern expression and all it's child expressions, in full tree depth, as a string in language syntax.

Specified by:

toEPL in interface PatternExpr

Parameters:

writer - is the output to use

parentPrecedence - precedence

formatter - formatter

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer)

Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Parameters:

writer - is the output to use