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

Class CreateVariableClause

java.lang.Object

com.espertech.esper.common.client.soda.CreateVariableClause

All Implemented Interfaces:

Serializable

public class CreateVariableClause
extends Object
implements Serializable

Represents a create-variable syntax for creating a new variable.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CreateVariableClause()	Ctor.
CreateVariableClause(String variableName)	Ctor.
CreateVariableClause(String variableType, String variableName, Expression optionalAssignment, boolean constant)	Ctor.

Method Summary

Modifier and Type	Method	Description
static CreateVariableClause	create(String variableType, String variableName)	Creates a create-variable syntax for declaring a variable.
static CreateVariableClause	create(String variableType, String variableName, Expression expression)	Creates a create-variable syntax for declaring a variable.
Expression	getOptionalAssignment()	Returns the optional assignment expression, or null to initialize to a null value
String	getVariableName()	Returns the variable name.
String	getVariableType()	Returns the variable type name.
boolean	isConstant()	Returns indicator whether the variable is a constant.
void	setConstant(boolean constant)	Sets the indicator whether the variable is a constant.
void	setOptionalAssignment(Expression optionalAssignment)	Sets the optional assignment expression, or null to initialize to a null value
void	setVariableName(String variableName)	Sets the variable name
void	setVariableType(String variableType)	Sets the variable type name.
void	toEPL(StringWriter writer)	Render as EPL.

Methods inherited from class java.lang.Object

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

Constructor Details

CreateVariableClause

public CreateVariableClause()

Ctor.

CreateVariableClause

public CreateVariableClause(String variableName)

Ctor.

Parameters:

variableName - variable name

CreateVariableClause

public CreateVariableClause(String variableType,
 String variableName,
 Expression optionalAssignment,
 boolean constant)

Ctor.

Parameters:

variableType - is the variable type name

variableName - is the name of the variable

optionalAssignment - is the optional assignment expression supplying the initial value, or null if the initial value is null

constant - true for constant, false for regular variable

Method Details

create

public static CreateVariableClause create(String variableType,
 String variableName)

Creates a create-variable syntax for declaring a variable.

Parameters:

variableType - is the variable type name

variableName - is the name of the variable

Returns:

create-variable clause

create

public static CreateVariableClause create(String variableType,
 String variableName,
 Expression expression)

Creates a create-variable syntax for declaring a variable.

Parameters:

variableType - is the variable type name

variableName - is the name of the variable

expression - is the assignment expression supplying the initial value

Returns:

create-variable clause

getVariableType

public String getVariableType()

Returns the variable type name.

Returns:

type of the variable

setVariableType

public void setVariableType(String variableType)

Sets the variable type name.

Parameters:

variableType - type of the variable

getVariableName

public String getVariableName()

Returns the variable name.

Returns:

name of the variable

setVariableName

public void setVariableName(String variableName)

Sets the variable name

Parameters:

variableName - name of the variable

getOptionalAssignment

public Expression getOptionalAssignment()

Returns the optional assignment expression, or null to initialize to a null value

Returns:

assignment expression, if present

setOptionalAssignment

public void setOptionalAssignment(Expression optionalAssignment)

Sets the optional assignment expression, or null to initialize to a null value

Parameters:

optionalAssignment - assignment expression, if present

isConstant

public boolean isConstant()

Returns indicator whether the variable is a constant.

Returns:

constant false

setConstant

public void setConstant(boolean constant)

Sets the indicator whether the variable is a constant.

Parameters:

constant - constant false

toEPL

public void toEPL(StringWriter writer)

Render as EPL.

Parameters:

writer - to output to