1 files changed, 69 insertions, 0 deletions
diff --git a/predicate-search-core/src/main/java/com/yahoo/document/predicate/Predicates.java b/predicate-search-core/src/main/java/com/yahoo/document/predicate/Predicates.java
new file mode 100644
index 00000000000..7362eb5ba6d
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+++ b/predicate-search-core/src/main/java/com/yahoo/document/predicate/Predicates.java
@@ -0,0 +1,69 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.document.predicate;
+
+/**
+ * @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen Hult</a>
+ */
+public class Predicates {
+
+    public static Conjunction and(Predicate... operands) {
+        return new Conjunction(operands);
+    }
+
+    public static Disjunction or(Predicate... operands) {
+        return new Disjunction(operands);
+    }
+
+    public static Negation not(Predicate operand) {
+        return new Negation(operand);
+    }
+
+    public static BooleanPredicate value(boolean value) {
+        return new BooleanPredicate(value);
+    }
+
+    public static FeatureBuilder feature(String key) {
+        return new FeatureBuilder(key);
+    }
+
+    public static class FeatureBuilder {
+
+        private final String key;
+
+        public FeatureBuilder(String key) {
+            this.key = key;
+        }
+
+        public FeatureRange lessThan(long toExclusive) {
+            return new FeatureRange(key, null, toExclusive - 1);
+        }
+
+        public FeatureRange lessThanOrEqualTo(long toInclusive) {
+            return new FeatureRange(key, null, toInclusive);
+        }
+
+        public FeatureRange greaterThan(long fromExclusive) {
+            return new FeatureRange(key, fromExclusive + 1, null);
+        }
+
+        public FeatureRange greaterThanOrEqualTo(long fromInclusive) {
+            return new FeatureRange(key, fromInclusive, null);
+        }
+
+        public FeatureRange inRange(long fromInclusive, long toInclusive) {
+            return new FeatureRange(key, fromInclusive, toInclusive);
+        }
+
+        public Negation notInRange(long fromInclusive, long toInclusive) {
+            return new Negation(new FeatureRange(key, fromInclusive, toInclusive));
+        }
+
+        public FeatureSet inSet(String... values) {
+            return new FeatureSet(key, values);
+        }
+
+        public Negation notInSet(String... values) {
+            return new Negation(new FeatureSet(key, values));
+        }
+    }
+}