Squashed commit of the following:

commit 20152e16891582f8ff466a93ec2cf01871824d6d
Author: Rob Bygrave <robin.bygrave@gmail.com>
Date:   Tue Feb 27 20:59:51 2024 +1300

    #3341 Update DatabaseConfig for fluid style + javadoc

commit 1c495a7384
Author: Roland Praml <roland.praml@foconis.de>
Date:   Mon Feb 26 10:25:42 2024 +0100

    Fix: Compile errors

commit 574876b758
Merge: df7b04877 77634fc3e
Author: Roland Praml <roland.praml@foconis.de>
Date:   Fri Feb 23 16:16:39 2024 +0100

    Merge branch 'master-rob' into FOCONIS-string-length-validation

commit df7b04877d
Author: Rob Bygrave <robin.bygrave@gmail.com>
Date:   Mon Jun 26 21:16:32 2023 +1200

    #3121 BindMaxLength validation

    At deploy time derive a BindMaxLength property to use
    per BeanProperty

commit 4683877e0b
Merge: 9a4b9d4be d0020ab8c
Author: Rob Bygrave <robin.bygrave@gmail.com>
Date:   Fri Jun 23 16:51:34 2023 +1200

    Merge branch 'string-length-validation' of github.com:FOCONIS/ebean into FOCONIS-string-length-validation

commit d0020ab8ce
Author: Roland Praml <roland.praml@foconis.de>
Date:   Tue Jun 20 14:47:20 2023 +0200

    Length validation less invasive

commit 9b3b8ad46a
Author: Roland Praml <roland.praml@foconis.de>
Date:   Tue Jun 20 13:03:04 2023 +0200

    extended DataBind, so that it could return the last bound object

commit ca3c02bc1c
Author: Roland Praml <roland.praml@foconis.de>
Date:   Mon Jun 19 09:52:52 2023 +0200

    Failing test for SqlServer

ebean-core/src/main/java/io/ebeaninternal/server/bind/DataBind.java

@@ -1,10 +1,14 @@
 package io.ebeaninternal.server.bind;
 
 import io.ebean.core.type.DataBinder;
+import io.ebean.core.type.InputStreamInfo;
 import io.ebeaninternal.api.CoreLog;
 import io.ebeaninternal.server.core.timezone.DataTimeZone;
 
-import java.io.*;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringReader;
 import java.math.BigDecimal;
 import java.sql.*;
 import java.util.ArrayList;
@@ -23,6 +27,8 @@ public class DataBind implements DataBinder {
   protected int pos;
   private String json;
 
+  private Object lastObject = null;
+
   public DataBind(DataTimeZone dataTimeZone, PreparedStatement pstmt, Connection connection) {
     this.dataTimeZone = dataTimeZone;
     this.pstmt = pstmt;
@@ -65,16 +71,19 @@ public class DataBind implements DataBinder {
   @Override
   public void setObject(Object value) throws SQLException {
     pstmt.setObject(++pos, value);
+    lastObject = value;
   }
 
   @Override
   public final void setObject(Object value, int sqlType) throws SQLException {
     pstmt.setObject(++pos, value, sqlType);
+    lastObject = value;
   }
 
   @Override
   public void setNull(int jdbcType) throws SQLException {
     pstmt.setNull(++pos, jdbcType);
+    lastObject = null;
   }
 
   @Override
@@ -96,7 +105,7 @@ public class DataBind implements DataBinder {
     }
   }
 
-  private void closeInputStreams() {
+  public void closeInputStreams() {
     if (inputStreams != null) {
       for (InputStream inputStream : inputStreams) {
         try {
@@ -117,36 +126,43 @@ public class DataBind implements DataBinder {
   @Override
   public void setString(String value) throws SQLException {
     pstmt.setString(++pos, value);
+    lastObject = value;
   }
 
   @Override
   public final void setInt(int value) throws SQLException {
     pstmt.setInt(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public final void setLong(long value) throws SQLException {
     pstmt.setLong(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public final void setShort(short value) throws SQLException {
     pstmt.setShort(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public final void setFloat(float value) throws SQLException {
     pstmt.setFloat(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public final void setDouble(double value) throws SQLException {
     pstmt.setDouble(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public final void setBigDecimal(BigDecimal value) throws SQLException {
     pstmt.setBigDecimal(++pos, value);
+    lastObject = null;
   }
 
   @Override
@@ -157,6 +173,7 @@ public class DataBind implements DataBinder {
     } else {
       pstmt.setDate(++pos, value);
     }
+    lastObject = null;
   }
 
   @Override
@@ -167,6 +184,7 @@ public class DataBind implements DataBinder {
     } else {
       pstmt.setTimestamp(++pos, value);
     }
+    lastObject = null;
   }
 
   @Override
@@ -177,26 +195,31 @@ public class DataBind implements DataBinder {
     } else {
       pstmt.setTime(++pos, value);
     }
+    lastObject = null;
   }
 
   @Override
   public void setBoolean(boolean value) throws SQLException {
     pstmt.setBoolean(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public void setBytes(byte[] value) throws SQLException {
     pstmt.setBytes(++pos, value);
+    lastObject = value;
   }
 
   @Override
   public void setByte(byte value) throws SQLException {
     pstmt.setByte(++pos, value);
+    lastObject = null;
   }
 
   @Override
   public void setChar(char value) throws SQLException {
     pstmt.setString(++pos, String.valueOf(value));
+    lastObject = null;
   }
 
   @Override
@@ -211,21 +234,31 @@ public class DataBind implements DataBinder {
     }
     inputStreams.add(inputStream);
     pstmt.setBinaryStream(++pos, inputStream, length);
+    lastObject = new InputStreamInfo(inputStream, length);
   }
 
   @Override
   public void setBlob(byte[] bytes) throws SQLException {
     pstmt.setBinaryStream(++pos, new ByteArrayInputStream(bytes), bytes.length);
+    lastObject = bytes;
   }
 
   @Override
   public void setClob(String content) throws SQLException {
     pstmt.setCharacterStream(++pos, new StringReader(content), content.length());
+    lastObject = content;
   }
 
   @Override
   public void setArray(String arrayType, Object[] elements) throws SQLException {
     pstmt.setArray(++pos, connection.createArrayOf(arrayType, elements));
+    lastObject = null;
   }
 
+  @Override
+  public Object popLastObject() {
+    Object ret = lastObject;
+    lastObject = null;
+    return ret;
+  }
 }

ebean-core/src/main/java/io/ebeaninternal/server/deploy/BeanDescriptorManager.java

@@ -106,6 +106,7 @@ public final class BeanDescriptorManager implements BeanDescriptorMap, SpiBeanTy
   private final String asOfViewSuffix;
   private final boolean jacksonCorePresent;
   private final int queryPlanTTLSeconds;
+  private final BindMaxLength bindMaxLength;
   private int entityBeanCount;
   private List<BeanDescriptor<?>> immutableDescriptorList;
   /**
@@ -160,6 +161,19 @@ public final class BeanDescriptorManager implements BeanDescriptorMap, SpiBeanTy
     this.changeLogListener = config.changeLogListener(bootupClasses.getChangeLogListener());
     this.changeLogRegister = config.changeLogRegister(bootupClasses.getChangeLogRegister());
     this.jacksonCorePresent = config.isJacksonCorePresent();
+    this.bindMaxLength = initMaxLength();
+  }
+
+  BindMaxLength initMaxLength() {
+    LengthCheck lengthCheck = this.config.getLengthCheck();
+    switch (lengthCheck) {
+      case OFF:
+        return null;
+      case UTF8:
+        return BindMaxLength.ofUtf8();
+      default:
+        return BindMaxLength.ofStandard();
+    }
   }
 
   @Override
@@ -1501,6 +1515,10 @@ public final class BeanDescriptorManager implements BeanDescriptorMap, SpiBeanTy
     return list;
   }
 
+  public BindMaxLength bindMaxLength() {
+    return bindMaxLength;
+  }
+
   /**
    * Comparator to sort the BeanDescriptors by name.
    */

ebean-core/src/main/java/io/ebeaninternal/server/deploy/BeanProperty.java

@@ -1,16 +1,20 @@
 package io.ebeaninternal.server.deploy;
 
 import com.fasterxml.jackson.core.JsonToken;
+import io.ebean.DataIntegrityException;
 import io.ebean.ValuePair;
 import io.ebean.bean.EntityBean;
 import io.ebean.bean.EntityBeanIntercept;
 import io.ebean.bean.MutableValueInfo;
 import io.ebean.bean.PersistenceContext;
 import io.ebean.config.EncryptKey;
+import io.ebean.config.LengthCheck;
 import io.ebean.config.dbplatform.DbEncryptFunction;
 import io.ebean.config.dbplatform.DbPlatformType;
+import io.ebean.config.dbplatform.ExtraDbTypes;
 import io.ebean.core.type.DataReader;
 import io.ebean.core.type.DocPropertyType;
+import io.ebean.core.type.InputStreamInfo;
 import io.ebean.core.type.ScalarType;
 import io.ebean.plugin.Property;
 import io.ebean.text.StringParser;
@@ -46,6 +50,7 @@ import java.io.DataInput;
 import java.io.DataOutput;
 import java.io.IOException;
 import java.lang.reflect.Field;
+import java.nio.charset.StandardCharsets;
 import java.sql.SQLException;
 import java.sql.Types;
 import java.util.List;
@@ -166,6 +171,7 @@ public class BeanProperty implements ElPropertyValue, Property, STreeProperty {
    */
   private final String dbComment;
   private final DbEncryptFunction dbEncryptFunction;
+  private final BindMaxLength bindMaxLength;
   private int deployOrder;
   final boolean jsonSerialize;
   final boolean jsonDeserialize;
@@ -258,6 +264,7 @@ public class BeanProperty implements ElPropertyValue, Property, STreeProperty {
     }
     this.jsonSerialize = deploy.isJsonSerialize();
     this.jsonDeserialize = deploy.isJsonDeserialize();
+    this.bindMaxLength = deploy.bindMaxLength();
   }
 
   private String tableAliasIntern(BeanDescriptor<?> descriptor, String s, boolean dbEncrypted, String dbColumn) {
@@ -345,6 +352,7 @@ public class BeanProperty implements ElPropertyValue, Property, STreeProperty {
     this.elPlaceHolderEncrypted = override.replace(source.elPlaceHolderEncrypted, source.dbColumn);
     this.jsonSerialize = source.jsonSerialize;
     this.jsonDeserialize = source.jsonDeserialize;
+    this.bindMaxLength = source.bindMaxLength;
   }
 
   /**
@@ -555,6 +563,18 @@ public class BeanProperty implements ElPropertyValue, Property, STreeProperty {
   @SuppressWarnings("unchecked")
   public void bind(DataBind b, Object value) throws SQLException {
     scalarType.bind(b, value);
+    if (bindMaxLength != null) {
+      Object obj = b.popLastObject();
+      long length = bindMaxLength.length(dbLength, obj);
+      if (length > dbLength) {
+        b.closeInputStreams();
+        String s = String.valueOf(value); // take original bind value here.
+        if (s.length() > 50) {
+          s = s.substring(0, 47) + "...";
+        }
+        throw new DataIntegrityException("Cannot bind value '" + s + "' (effective length=" + length + ") to column '" + dbColumn + "' (length=" + dbLength + ")");
+      }
+    }
   }
 
   @SuppressWarnings(value = "unchecked")

ebean-core/src/main/java/io/ebeaninternal/server/deploy/BindMaxLength.java

@@ -0,0 +1,77 @@
+package io.ebeaninternal.server.deploy;
+
+import io.ebean.core.type.InputStreamInfo;
+
+import java.nio.charset.StandardCharsets;
+
+/**
+ * The max length check on bind values.
+ */
+public interface BindMaxLength {
+
+  /**
+   * Return a UTF8 based implementation.
+   */
+  static BindMaxLength ofUtf8() {
+    return new UTF8();
+  }
+
+  /**
+   * Return a standard implementation.
+   */
+  static BindMaxLength ofStandard() {
+    return new Standard();
+  }
+
+  /**
+   * Return the length of the object.
+   */
+  long length(int dbLength, Object obj);
+
+  /**
+   * Length check based on UTF8 bytes.
+   */
+  final class UTF8 implements BindMaxLength {
+
+    @Override
+    public long length(int dbLength, Object obj) {
+      if (obj instanceof String) {
+        String s = (String) obj;
+        int stringLength = s.length();
+        if (stringLength > dbLength) {
+          return stringLength;
+        } else if (stringLength * 4 <= dbLength) {
+          return -1;
+        } else {
+          return s.getBytes(StandardCharsets.UTF_8).length;
+        }
+
+      } else if (obj instanceof byte[]) {
+        return ((byte[]) obj).length;
+      } else if (obj instanceof InputStreamInfo) {
+        return ((InputStreamInfo) obj).length();
+      } else {
+        return -1;
+      }
+    }
+  }
+
+  /**
+   * Standard string length implementation.
+   */
+  final class Standard implements BindMaxLength {
+
+    @Override
+    public long length(int dbLength, Object obj) {
+      if (obj instanceof String) {
+        return ((String) obj).length();
+      } else if (obj instanceof byte[]) {
+        return ((byte[]) obj).length;
+      } else if (obj instanceof InputStreamInfo) {
+        return ((InputStreamInfo) obj).length();
+      } else {
+        return -1;
+      }
+    }
+  }
+}

ebean-core/src/main/java/io/ebeaninternal/server/deploy/meta/DeployBeanDescriptor.java

@@ -1,10 +1,10 @@
 package io.ebeaninternal.server.deploy.meta;
 
+import io.ebean.DatabaseBuilder;
 import io.ebean.annotation.Cache;
 import io.ebean.annotation.DocStore;
 import io.ebean.annotation.DocStoreMode;
 import io.ebean.annotation.Identity;
-import io.ebean.DatabaseBuilder;
 import io.ebean.config.TableName;
 import io.ebean.config.dbplatform.IdType;
 import io.ebean.config.dbplatform.PlatformIdGenerator;
@@ -21,7 +21,6 @@ import io.ebeaninternal.server.idgen.UuidV1IdGenerator;
 import io.ebeaninternal.server.idgen.UuidV1RndIdGenerator;
 import io.ebeaninternal.server.idgen.UuidV4IdGenerator;
 import io.ebeaninternal.server.rawsql.SpiRawSql;
-
 import jakarta.persistence.Entity;
 import jakarta.persistence.MappedSuperclass;
 
@@ -139,6 +138,10 @@ public class DeployBeanDescriptor<T> {
     this.beanType = beanType;
   }
 
+  public BindMaxLength bindMaxLength() {
+    return manager.bindMaxLength();
+  }
+
   private String[] readPropertyNames() {
     try {
       Field field = beanType.getField("_ebean_props");

ebean-core/src/main/java/io/ebeaninternal/server/deploy/meta/DeployBeanProperty.java

@@ -1,14 +1,17 @@
 package io.ebeaninternal.server.deploy.meta;
 
+import io.avaje.lang.Nullable;
 import io.ebean.annotation.*;
 import io.ebean.config.ScalarTypeConverter;
 import io.ebean.config.dbplatform.DbDefaultValue;
 import io.ebean.config.dbplatform.DbEncrypt;
 import io.ebean.config.dbplatform.DbEncryptFunction;
+import io.ebean.config.dbplatform.ExtraDbTypes;
 import io.ebean.core.type.ScalarType;
 import io.ebean.util.AnnotationUtil;
 import io.ebeaninternal.server.core.InternString;
 import io.ebeaninternal.server.deploy.BeanProperty;
+import io.ebeaninternal.server.deploy.BindMaxLength;
 import io.ebeaninternal.server.deploy.DbMigrationInfo;
 import io.ebeaninternal.server.deploy.DeployDocPropertyOptions;
 import io.ebeaninternal.server.deploy.generatedproperty.GeneratedProperty;
@@ -1133,4 +1136,20 @@ public class DeployBeanProperty {
   boolean isJsonType() {
     return mutationDetection != null;
   }
+
+  @Nullable
+  public BindMaxLength bindMaxLength() {
+      if (dbLength == 0) {
+        return null;
+      }
+      switch (dbType) {
+        case Types.VARCHAR:
+        case Types.BLOB:
+        case ExtraDbTypes.JSON:
+          return desc.bindMaxLength();
+        default:
+          return null;
+      }
+
+  }
 }