Package com.yahoo.vespa.indexinglanguage

Class ValueTransformProvider

java.lang.Object

com.yahoo.vespa.indexinglanguage.ExpressionConverter

com.yahoo.vespa.indexinglanguage.ValueTransformProvider

All Implemented Interfaces:

Cloneable

public abstract class ValueTransformProvider
extends ExpressionConverter

Inserts a "newTransform()" before expressions that "requiresTransform()"

Author:

Simon Thoresen Hult

Constructor Summary

Constructors

Constructor	Description
ValueTransformProvider(Class<? extends Expression> transformClass)

Method Summary

Modifier and Type	Method	Description
final ExpressionConverter	branch()
protected final Expression	doConvert(Expression exp)
protected abstract Expression	newTransform()
protected abstract boolean	requiresTransform(Expression exp)
protected final boolean	shouldConvert(Expression expression)

Methods inherited from class com.yahoo.vespa.indexinglanguage.ExpressionConverter

clone, convert

Methods inherited from class java.lang.Object

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

Constructor Details

ValueTransformProvider

public ValueTransformProvider(Class<? extends Expression> transformClass)

Method Details

branch

public final ExpressionConverter branch()

Overrides:

branch in class ExpressionConverter

shouldConvert

protected final boolean shouldConvert(Expression expression)

Specified by:

shouldConvert in class ExpressionConverter

doConvert

protected final Expression doConvert(Expression exp)

Specified by:

doConvert in class ExpressionConverter

requiresTransform

protected abstract boolean requiresTransform(Expression exp)

newTransform

protected abstract Expression newTransform()