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Diffstat (limited to 'container-search/src/main/java/com/yahoo/search/grouping/request/SizeFunction.java')
| -rw-r--r-- | container-search/src/main/java/com/yahoo/search/grouping/request/SizeFunction.java | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/container-search/src/main/java/com/yahoo/search/grouping/request/SizeFunction.java b/container-search/src/main/java/com/yahoo/search/grouping/request/SizeFunction.java new file mode 100644 index 00000000000..d445007a039 --- /dev/null +++ b/container-search/src/main/java/com/yahoo/search/grouping/request/SizeFunction.java @@ -0,0 +1,23 @@ +// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. +package com.yahoo.search.grouping.request; + +import java.util.Arrays; + +/** + * This class represents a size-function in a {@link GroupingExpression}. It evaluates to a number that equals the + * number of elements in the result of the argument (e.g. the number of elements in an array). + * + * @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen</a> + */ +public class SizeFunction extends FunctionNode { + + /** + * Constructs a new instance of this class. + * + * @param exp The expression to evaluate. + */ + public SizeFunction(GroupingExpression exp) { + super("size", Arrays.asList(exp)); + } +} + |