Package jodd.db.oom.sqlgen.chunks

Source Code of jodd.db.oom.sqlgen.chunks.InsertChunk

// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.

package jodd.db.oom.sqlgen.chunks;

import jodd.db.oom.DbEntityDescriptor;
import jodd.db.oom.DbEntityColumnDescriptor;
import jodd.bean.BeanUtil;
import jodd.util.StringUtil;

/**
* Renders complete INSERT statement. This chunk is a bit different than others since it renders a complete SQL
* query for inserting.
*/
public class InsertChunk extends SqlChunk {

  protected final String entityName;
  protected final Class entityType;
  protected final Object data;

  public InsertChunk(String entityName, Object data) {
    this(entityName, null, data);
  }

  public InsertChunk(Class entityType, Object data) {
    this(null, entityType, data);
  }

  protected InsertChunk(String entityName, Class entityType, Object data) {
    super(CHUNK_INSERT);
    this.entityName = entityName;
    this.entityType = entityType;
    this.data = data;
  }

  @Override
  public void process(StringBuilder out) {
    DbEntityDescriptor ded = entityName != null ? lookupName(entityName) : lookupType(entityType);
    StringBuilder col = new StringBuilder();
    StringBuilder val = new StringBuilder();

    DbEntityColumnDescriptor[] decList = ded.getColumnDescriptors();
    String typeName = StringUtil.uncapitalize(ded.getEntityName());

    int size = 0;
    for (DbEntityColumnDescriptor dec : decList) {
      String property = dec.getPropertyName();
      Object value = BeanUtil.getDeclaredProperty(data, property);
      if (value == null) {
        continue;
      }
     
      if (size > 0) {
        col.append(',').append(' ');
        val.append(',').append(' ');
      }
      size++;
      col.append(dec.getColumnName());

      String propertyName = typeName + '.' + property;
      defineParameter(val, propertyName, value, dec);
    }

    out.append("insert into ").append(ded.getTableName()).append(" (")
        .append(col).append(") values (").append(val).append(')');
  }

}
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