diff --git a/mdbxjni/src/main/java/com/castortech/mdbxjni/Env.java b/mdbxjni/src/main/java/com/castortech/mdbxjni/Env.java
index bf1f79a..4b54678 100644
--- a/mdbxjni/src/main/java/com/castortech/mdbxjni/Env.java
+++ b/mdbxjni/src/main/java/com/castortech/mdbxjni/Env.java
@@ -284,9 +284,8 @@ public void open(String path, EnvConfig config) {
 			setMaxReaders(config.getMaxReaders());
 		}
 
-		if (config.getMapSize() != -1) {
-			setMapSize(config.getMapSize());
-		}
+		setGeometry(config.getMapLower(), config.getMapSize(), config.getMapUpper(), config.getMapGrowth(),
+				config.getMapShrink(), config.getPageSize());
 
 		int rc = mdbx_env_open(pointer(), path, flags, config.getMode());
 		if (rc != 0) {
diff --git a/mdbxjni/src/main/java/com/castortech/mdbxjni/EnvConfig.java b/mdbxjni/src/main/java/com/castortech/mdbxjni/EnvConfig.java
index 82d682a..0304aef 100644
--- a/mdbxjni/src/main/java/com/castortech/mdbxjni/EnvConfig.java
+++ b/mdbxjni/src/main/java/com/castortech/mdbxjni/EnvConfig.java
@@ -21,7 +21,13 @@ public class EnvConfig implements Cloneable {
 	private int mode = 0644;  //this is octal
 	private int maxReaders = -1;
 	private long maxDbs = -1;
-	private long mapSize = -1;
+	private long pageSize = -1;
+
+	private long mapLower = -1;
+	private long mapSize = -1;  //represents geo now
+	private long mapUpper = -1;
+	private long mapGrowth = -1;
+	private long mapShrink = -1;
 
 	public int getMode() {
 		return mode;
@@ -47,6 +53,22 @@ public void setMaxDbs(long maxDbs) {
 		this.maxDbs = maxDbs;
 	}
 
+	public long getPageSize() {
+		return pageSize;
+	}
+
+	public void setPageSize(long pageSize) {
+		this.pageSize = pageSize;
+	}
+
+	public long getMapLower() {
+		return mapLower;
+	}
+
+	public void setMapLower(long mapLower) {
+		this.mapLower = mapLower;
+	}
+
 	public long getMapSize() {
 		return mapSize;
 	}
@@ -55,6 +77,30 @@ public void setMapSize(long mapSize) {
 		this.mapSize = mapSize;
 	}
 
+	public long getMapUpper() {
+		return mapUpper;
+	}
+
+	public void setMapUpper(long mapUpper) {
+		this.mapUpper = mapUpper;
+	}
+
+	public long getMapGrowth() {
+		return mapGrowth;
+	}
+
+	public void setMapGrowth(long mapGrowth) {
+		this.mapGrowth = mapGrowth;
+	}
+
+	public long getMapShrink() {
+		return mapShrink;
+	}
+
+	public void setMapShrink(long mapShrink) {
+		this.mapShrink = mapShrink;
+	}
+
 	public boolean isNoSubDir() {
 		return noSubDir;
 	}