Package com.yahoo.vespa.indexinglanguage.expressions

Class ArithmeticExpression

java.lang.Object

com.yahoo.vespa.objects.Selectable

com.yahoo.vespa.indexinglanguage.expressions.Expression

com.yahoo.vespa.indexinglanguage.expressions.CompositeExpression

com.yahoo.vespa.indexinglanguage.expressions.ArithmeticExpression

public final class ArithmeticExpression
extends CompositeExpression

Author:

Simon Thoresen Hult

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	ArithmeticExpression.Operator

Constructor Summary

Constructors

Constructor	Description
ArithmeticExpression(Expression left, ArithmeticExpression.Operator op, Expression right)

Method Summary

Modifier and Type	Method	Description
static BigDecimal	asBigDecimal(com.yahoo.document.datatypes.NumericFieldValue value)
ArithmeticExpression	convertChildren(ExpressionConverter converter)	Returns an expression where the children of this has been converted using the given converter.
protected void	doExecute(ExecutionContext context)
boolean	equals(Object object)
Expression	getLeftHandSide()
ArithmeticExpression.Operator	getOperator()
Expression	getRightHandSide()
int	hashCode()
boolean	requiresInput()	Returns whether this expression requires an input value.
void	selectMembers(com.yahoo.vespa.objects.ObjectPredicate predicate, com.yahoo.vespa.objects.ObjectOperation operation)
com.yahoo.document.DataType	setInputType(com.yahoo.document.DataType inputType, TypeContext context)	Sets the input type of this and returns the resulting output type, or null if it cannot be uniquely determined.
com.yahoo.document.DataType	setOutputType(com.yahoo.document.DataType outputType, TypeContext context)	Sets the output type of this and returns the resulting input type, or null if it cannot be uniquely determined.
String	toString()

Methods inherited from class com.yahoo.vespa.indexinglanguage.expressions.CompositeExpression

toScriptBlock

Methods inherited from class com.yahoo.vespa.indexinglanguage.expressions.Expression

doResolve, execute, execute, execute, execute, execute, execute, execute, execute, execute, execute, execute, execute, fromString, fromString, getInputType, getOutputType, getOutputType, isMutating, leastGeneralNonNullOf, leastGeneralOf, mostGeneralOf, newInstance, requireOutputType, resolve, resolve, resolve, resolve, resolve, resolve, resolve, resolve, resolve, setInputType, setOutputType, setStatementOutput

Methods inherited from class com.yahoo.vespa.objects.Selectable

select, select

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

ArithmeticExpression

public ArithmeticExpression(Expression left,
 ArithmeticExpression.Operator op,
 Expression right)

Method Details

requiresInput

public boolean requiresInput()

Description copied from class: Expression

Returns whether this expression requires an input value.

Overrides:

requiresInput in class Expression

getLeftHandSide

public Expression getLeftHandSide()

getOperator

public ArithmeticExpression.Operator getOperator()

getRightHandSide

public Expression getRightHandSide()

convertChildren

public ArithmeticExpression convertChildren(ExpressionConverter converter)

Description copied from class: Expression

Returns an expression where the children of this has been converted using the given converter. This default implementation returns this as it has no children.

Specified by:

convertChildren in class CompositeExpression

setInputType

public com.yahoo.document.DataType setInputType(com.yahoo.document.DataType inputType,
 TypeContext context)

Description copied from class: Expression

Sets the input type of this and returns the resulting output type, or null if it cannot be uniquely determined. Subtypes may implement this by calling setInputType(inputType, requiredType, VerificationContext context).

Overrides:

setInputType in class Expression

setOutputType

public com.yahoo.document.DataType setOutputType(com.yahoo.document.DataType outputType,
 TypeContext context)

Description copied from class: Expression

Sets the output type of this and returns the resulting input type, or null if it cannot be uniquely determined. Subtypes implement this by calling setOutputType(outputType, requiredType, VerificationContext context).

Overrides:

setOutputType in class Expression

doExecute

protected void doExecute(ExecutionContext context)

Specified by:

doExecute in class Expression

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

asBigDecimal

public static BigDecimal asBigDecimal(com.yahoo.document.datatypes.NumericFieldValue value)

selectMembers

public void selectMembers(com.yahoo.vespa.objects.ObjectPredicate predicate,
 com.yahoo.vespa.objects.ObjectOperation operation)

Overrides:

selectMembers in class com.yahoo.vespa.objects.Selectable