A.2. datatypes.xml

datatypes.xml defines the available data types for entity attributes. See Section 4.2.2.3, “Datatype”

The default file is located in the com.haulmont.chile.core.datatypes package of the cuba base project. If a similar file is created in the CLASSPATH root of the global module in an application project, the data types will be loaded from this file.

The loading mechanism does not support extension, i.e. all data types are loaded from a single file – either from the CLASSPATH root or from the com.haulmont.chile.core.datatypes package.

Available data types should be specified as datatype elements. The only mandatory attribute is class, which defines a data type class implementing the Datatype interface. The remaining attribute set depends on the class. The object created from the class, receives the corresponding XML element when created, and should parse the element itself.

Typical attributes:

  • format – format for conversion to string.

  • groupingSeparator – number grouping separator character.

  • decimalSeparator – decimal separator character.

Example:

<datatypes>

  <datatype class="com.haulmont.chile.core.datatypes.impl.BooleanDatatype"/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.IntegerDatatype"
            format="0" groupingSeparator=""/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.LongDatatype"
            format="0" groupingSeparator=""/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.DoubleDatatype"
            format="0.###" decimalSeparator="." groupingSeparator=""/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.BigDecimalDatatype"
            format="0.####" decimalSeparator="." groupingSeparator=""/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.StringDatatype"/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.DateTimeDatatype"
            format="yyyy-MM-dd'T'HH:mm:ss.SSS"/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.DateDatatype"
            format="yyyy-MM-dd"/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.TimeDatatype"
            format="HH:mm:ss"/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.UUIDDatatype"/>

  <datatype class="com.haulmont.chile.core.datatypes.impl.ByteArrayDatatype"/>

</datatypes>
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