1 files changed, 93 insertions, 0 deletions
diff --git a/predicate-search-core/src/main/java/com/yahoo/document/predicate/Disjunction.java b/predicate-search-core/src/main/java/com/yahoo/document/predicate/Disjunction.java
new file mode 100644
index 00000000000..c5fa6ba1f70
--- /dev/null
+++ b/predicate-search-core/src/main/java/com/yahoo/document/predicate/Disjunction.java
@@ -0,0 +1,93 @@
+// 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;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen Hult</a>
+ */
+public class Disjunction extends PredicateOperator {
+
+    private List<Predicate> operands;
+
+    public Disjunction(Predicate... operands) {
+        this(Arrays.asList(operands));
+    }
+
+    public Disjunction(List<? extends Predicate> operands) {
+        this.operands = new ArrayList<>(operands);
+    }
+
+    public Disjunction addOperand(Predicate operand) {
+        operands.add(operand);
+        return this;
+    }
+
+    public Disjunction addOperands(Collection<? extends Predicate> operands) {
+        this.operands.addAll(operands);
+        return this;
+    }
+
+    public Disjunction setOperands(Collection<? extends Predicate> operands) {
+        this.operands.clear();
+        this.operands.addAll(operands);
+        return this;
+    }
+
+    @Override
+    public List<Predicate> getOperands() {
+        return operands;
+    }
+
+    @Override
+    public Disjunction clone() throws CloneNotSupportedException {
+        Disjunction obj = (Disjunction)super.clone();
+        obj.operands = new ArrayList<>(operands.size());
+        for (Predicate operand : operands) {
+            obj.operands.add(operand.clone());
+        }
+        return obj;
+    }
+
+    @Override
+    public int hashCode() {
+        return operands.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (!(obj instanceof Disjunction)) {
+            return false;
+        }
+        Disjunction rhs = (Disjunction)obj;
+        if (!operands.equals(rhs.operands)) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    protected void appendTo(StringBuilder out) {
+        for (Iterator<Predicate> it = operands.iterator(); it.hasNext(); ) {
+            Predicate operand = it.next();
+            if (operand instanceof Conjunction) {
+                out.append('(');
+                operand.appendTo(out);
+                out.append(')');
+            } else {
+                operand.appendTo(out);
+            }
+            if (it.hasNext()) {
+                out.append(" or ");
+            }
+        }
+    }
+
+}