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Vaadin Forum3. Vaadin 6, 7, 8Framework Data Binding

Remove Item in the Table - SQLContainer

Vladimyr Banyas
10 years ago Feb 17, 2012 3:44pm

Hi,

I use a relation of SQLContainer, TableQuery, Table.
When Comit of removing Item from Table throws a java.lang.NullPointerException:

Caused by: java.lang.NullPointerException
    at com.vaadin.data.util.sqlcontainer.query.generator.DefaultSQLGenerator.generateDeleteQuery(DefaultSQLGenerator.java:235)
    at com.vaadin.data.util.sqlcontainer.query.TableQuery.removeRow(TableQuery.java:603)
    at com.vaadin.data.util.sqlcontainer.SQLContainer.commit(SQLContainer.java:891)

Visually deletion occurs, but really from the database (PostgreeSQL) nothing is deleted.
In what may be the reason?

Teppo Kurki
10 years ago Feb 29, 2012 10:40am

Hi,

the stack trace location indicates that it's got something to do with the version column. Have you defined one and does it also have valid content (no nulls or such)?

-Tepi

Hugo Hanisch
9 years ago Jul 26, 2012 6:23pm

Vladimyr Banyas: Hi,

I use a relation of SQLContainer, TableQuery, Table.
When Comit of removing Item from Table throws a java.lang.NullPointerException:

Caused by: java.lang.NullPointerException
    at com.vaadin.data.util.sqlcontainer.query.generator.DefaultSQLGenerator.generateDeleteQuery(DefaultSQLGenerator.java:235)
    at com.vaadin.data.util.sqlcontainer.query.TableQuery.removeRow(TableQuery.java:603)
    at com.vaadin.data.util.sqlcontainer.SQLContainer.commit(SQLContainer.java:891)

Visually deletion occurs, but really from the database (PostgreeSQL) nothing is deleted.
In what may be the reason?

Hi:

Could you solve this issue?