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## org.eclipse.birt.data.engine.api
Interface IScriptExpression

All Superinterfaces:
  IBaseExpression

All Known Implementing Classes:
  ScriptExpression

    public interface IScriptExpression

extends IBaseExpression

Describes a Javascript expression used in the report design.

Field Summary

Fields inherited from interface org.eclipse.birt.data.engine.api.IBaseExpression
`GROUP_OVERALL`

Method Summary
`java.lang.Object` | `getConstantValue()` This method return the constant value if this expression is a constant expression
`java.lang.String` | `getText()`
`boolean` | `isConstant()`
`void` | `setConstantValue(java.lang.Object constantValue)` Set the constant value for constant expression

Methods inherited from interface org.eclipse.birt.data.engine.api.IBaseExpression
`getDataType, getGroupName, getHandle, getScriptId, setGroupName, setHandle, setScriptId`

Method Detail

### getText

    java.lang.String getText()

  Returns:
    the Javascript expression text

### isConstant

    boolean isConstant()

  Returns:
    return true, if this expression is a constant expression;

### getConstantValue

    java.lang.Object getConstantValue()

  This method return the constant value if this expression is a constant expression

  Returns:

### setConstantValue

    void setConstantValue(java.lang.Object constantValue)

  Set the constant value for constant expression

  Parameters:
    `constantValue` -

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