added ExecutionResult to repo

Author: jexp

src/main/java/org/neo4j/example/rest/ExecutionResult.java

@@ -0,0 +1,13 @@
+package org.neo4j.example.rest;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+public interface ExecutionResult extends Iterable<List<Object>> {
+    List<String> getColumns();
+
+    Iterator<List<Object>> iterator();
+
+    Iterator<Map<String,Object>> rowIterator();
+}

src/main/java/org/neo4j/example/rest/ExecutionResultImpl.java

@@ -0,0 +1,66 @@
+package org.neo4j.example.rest;
+
+import java.util.*;
+
+/**
+* Created by mh on 26.07.13.
+*/
+public class ExecutionResultImpl implements ExecutionResult {
+    private final List<String> columns = new ArrayList<String>();
+    private final List<List<Object>> data = new ArrayList<List<Object>>();
+    private final int columnCount;
+
+    public ExecutionResultImpl(List<String> columns) {
+        this.columns.addAll(columns);
+        this.columnCount = columns.size();
+    }
+    void addRow(List<Object> row) {
+        data.add(row);
+    }
+    void addRows(List<List<Object>> rows) {
+        this.data.addAll(rows);
+    }
+
+    @Override
+    public List<String> getColumns() {
+        return columns;
+    }
+
+    @Override
+    public Iterator<List<Object>> iterator() {
+        return data.iterator();
+    }
+
+    @Override
+    public Iterator<Map<String,Object>> rowIterator() {
+        return new RowIterator();
+    }
+
+    private class RowIterator implements Iterator<Map<String, Object>> {
+        final Iterator<List<Object>> it;
+
+        private RowIterator() {
+            it = iterator();
+        }
+
+        @Override
+        public boolean hasNext() {
+            return it.hasNext();
+        }
+
+        @Override
+        public Map<String, Object> next() {
+            List<Object> rowData = it.next();
+            Map<String,Object> row = new LinkedHashMap<String, Object>(columnCount);
+            for (int col = 0; col < columnCount; col++) {
+                row.put(columns.get(col),rowData.get(col));
+            }
+            return row;
+        }
+
+        @Override
+        public void remove() {
+
+        }
+    }
+}