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

Class PatternMatchUntilExpr

java.lang.Object

com.espertech.esper.common.client.soda.PatternExprBase

com.espertech.esper.common.client.soda.PatternMatchUntilExpr

All Implemented Interfaces:

PatternExpr, Serializable

public class PatternMatchUntilExpr
extends PatternExprBase

Match-Until construct for use in pattern expressions.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
PatternMatchUntilExpr()	Ctor - for use to create a pattern expression tree, without pattern child expression.
PatternMatchUntilExpr(Expression single)	Ctor.
PatternMatchUntilExpr(Expression low, Expression high, Expression single)	Ctor - for use when adding required child nodes later.
PatternMatchUntilExpr(Expression low, Expression high, PatternExpr match, PatternExpr until)	Ctor.

Method Summary

Modifier and Type	Method	Description
Expression	getHigh()	Returns the optional high endpoint for the repeat, or null if none supplied.
Expression	getLow()	Returns the optional low endpoint for the repeat, or null if none supplied.
PatternExprPrecedenceEnum	getPrecedence()	Returns the precedence.
Expression	getSingle()	Returns the single-bounds expression.
void	setHigh(Expression high)	Sets the optional high endpoint for the repeat, or null if none supplied.
void	setLow(Expression low)	Sets the optional low endpoint for the repeat, or null if none supplied.
void	setSingle(Expression single)	Sets the single-bound expression.
void	toPrecedenceFreeEPL(StringWriter writer, EPStatementFormatter formatter)	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.PatternExprBase

addChild, getChildren, getTreeObjectName, setChildren, setTreeObjectName, toEPL

Methods inherited from class java.lang.Object

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

Constructor Details

PatternMatchUntilExpr

public PatternMatchUntilExpr()

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

PatternMatchUntilExpr

public PatternMatchUntilExpr(Expression low,
 Expression high,
 Expression single)

Ctor - for use when adding required child nodes later.

Parameters:

low - - low number of matches, or null if no lower boundary

high - - high number of matches, or null if no high boundary

single - - if a single bound is provided, this carries the single bound (all others should be null)

PatternMatchUntilExpr

public PatternMatchUntilExpr(Expression single)

Ctor.

Parameters:

single - the single bound expression

PatternMatchUntilExpr

public PatternMatchUntilExpr(Expression low,
 Expression high,
 PatternExpr match,
 PatternExpr until)

Ctor.

Parameters:

low - - low number of matches, or null if no lower boundary

high - - high number of matches, or null if no high boundary

match - - the pattern expression that is sought to match repeatedly

until - - the pattern expression that ends matching (optional, can be null)

Method Details

getLow

public Expression getLow()

Returns the optional low endpoint for the repeat, or null if none supplied.

Returns:

low endpoint

setLow

public void setLow(Expression low)

Sets the optional low endpoint for the repeat, or null if none supplied.

Parameters:

low - - low endpoint to set

getHigh

public Expression getHigh()

Returns the optional high endpoint for the repeat, or null if none supplied.

Returns:

high endpoint

getSingle

public Expression getSingle()

Returns the single-bounds expression.

Returns:

single-bound expression

setSingle

public void setSingle(Expression single)

Sets the single-bound expression.

Parameters:

single - single-bound expression

setHigh

public void setHigh(Expression high)

Sets the optional high endpoint for the repeat, or null if none supplied.

Parameters:

high - - high endpoint to set

getPrecedence

public PatternExprPrecedenceEnum getPrecedence()

Description copied from interface: PatternExpr

Returns the precedence.

Returns:

precedence

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer,
 EPStatementFormatter formatter)

Description copied from class: PatternExprBase

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

Specified by:

toPrecedenceFreeEPL in class PatternExprBase

Parameters:

writer - is the output to use

formatter - for newline-whitespace formatting