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h2/src/main/org/h2/value/ValueStringFixed.java

+package org.h2.value;
+
+import java.sql.SQLException;
+
+import org.h2.engine.Constants;
+import org.h2.util.StringCache;
+
+public class ValueStringFixed extends ValueStringBase {
+
+    private static final ValueStringFixed EMPTY = new ValueStringFixed("");
+
+    protected ValueStringFixed(String value) {
+        super(value);
+    }
+
+    protected int compareSecure(Value o, CompareMode mode) throws SQLException {
+        ValueStringFixed v = (ValueStringFixed) o;
+        return mode.compareString(value, v.value, false);
+    }
+    
+    private static String trimRight(String s) {
+        int endIndex = s.length() - 1;
+        int i = endIndex;
+        while (i >= 0 && s.charAt(i) == ' ') {
+            i--;
+        }
+        s = i == endIndex ? s : s.substring(0, i + 1);
+        return s;
+    }
+    
+    
+    protected boolean isEqual(Value v) {
+        return v instanceof ValueStringBase && value.equalsIgnoreCase(((ValueStringBase)v).value);
+    }    
+
+    public int hashCode() {
+        // TODO hash performance: could build a quicker hash by hashing the size and a few characters
+        return value.hashCode();
+    }
+
+    public int getType() {
+        return Value.STRING_FIXED;
+    }
+    
+    public static ValueStringFixed get(String s) {
+        if (s.length() == 0) {
+            return EMPTY;
+        }
+        s = trimRight(s);
+        ValueStringFixed obj = new ValueStringFixed(StringCache.get(s));
+        if (s.length() > Constants.OBJECT_CACHE_MAX_PER_ELEMENT_SIZE) {
+            return obj;
+        }
+        return (ValueStringFixed) Value.cache(obj);
+    }
+
+}