package liquibase.change.core;

 import liquibase.change.AbstractChange;

 import liquibase.change.ChangeMetaData;

 import liquibase.change.ChangeProperty;

 import liquibase.database.Database;

 import liquibase.statement.SqlStatement;

 import liquibase.statement.core.DropIndexStatement;

 import liquibase.util.StringUtils;

 /**

  * Drops an existing index.

  */

 public class DropIndexChange extends AbstractChange {

     private String schemaName;

     private String indexName;

     private String tableName;

     @ChangeProperty(includeInSerialization = false)

     private String associatedWith;

     public DropIndexChange() {

         super("dropIndex", "Drop Index", ChangeMetaData.PRIORITY_DEFAULT);

     }

     public String getSchemaName() {

         return schemaName;

     }

     public void setSchemaName(String schemaName) {

         this.schemaName = StringUtils.trimToNull(schemaName);

     }

     public String getIndexName() {

         return indexName;

     }

     public void setIndexName(String indexName) {

         this.indexName = indexName;

     }

     public String getTableName() {

         return tableName;

     }

     public void setTableName(String tableName) {

         this.tableName = tableName;

     }

     public SqlStatement[] generateStatements(Database database) {

         return new SqlStatement[] { new DropIndexStatement(getIndexName(),

                 getSchemaName() == null ? database.getDefaultSchemaName() : getSchemaName(), getTableName(),

                 getAssociatedWith()) };

     }

     public String getConfirmationMessage() {

         return "Index " + getIndexName() + " dropped from table " + getTableName();

     }

     public String getAssociatedWith() {

         return associatedWith;

     }

     public void setAssociatedWith(String associatedWith) {

         this.associatedWith = associatedWith;

     }

 }