net.sf.jasperreports.engine.base
Class JRBaseVariable

java.lang.Object
  net.sf.jasperreports.engine.base.JRBaseVariable

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, JRCloneable, JRVariable

Direct Known Subclasses:

JRDesignVariable

public class JRBaseVariable
extends java.lang.Object
implements JRVariable, java.io.Serializable

Version:

$Id: JRBaseVariable.java 3033 2009-08-27 11:46:22Z teodord $

Author:

Teodor Danciu (teodord@users.sourceforge.net)

See Also:

Serialized Form

Field Summary

protected byte	calculation
protected JRExpression	expression
protected java.lang.Class	incrementerFactoryClass
protected java.lang.String	incrementerFactoryClassName
protected java.lang.String	incrementerFactoryClassRealName
protected JRGroup	incrementGroup
protected byte	incrementType
protected JRExpression	initialValueExpression
protected boolean	isSystemDefined
protected java.lang.String	name
protected JRGroup	resetGroup
protected byte	resetType
protected java.lang.Class	valueClass
protected java.lang.String	valueClassName
protected java.lang.String	valueClassRealName

Fields inherited from interface net.sf.jasperreports.engine.JRVariable

CALCULATION_AVERAGE, CALCULATION_COUNT, CALCULATION_DISTINCT_COUNT, CALCULATION_FIRST, CALCULATION_HIGHEST, CALCULATION_LOWEST, CALCULATION_NOTHING, CALCULATION_STANDARD_DEVIATION, CALCULATION_SUM, CALCULATION_SYSTEM, CALCULATION_VARIANCE, COLUMN_COUNT, COLUMN_NUMBER, PAGE_COUNT, PAGE_NUMBER, REPORT_COUNT, RESET_TYPE_COLUMN, RESET_TYPE_GROUP, RESET_TYPE_NONE, RESET_TYPE_PAGE, RESET_TYPE_REPORT

Constructor Summary

protected	JRBaseVariable()
protected	JRBaseVariable(JRVariable variable, JRBaseObjectFactory factory)

Method Summary

java.lang.Object	clone()
byte	getCalculation() Returns the variable calculation type.
JRExpression	getExpression() Returns the main expression for this variable.
java.lang.Class	getIncrementerFactoryClass() Returns the class of the incrementer factory used for choosing the right incrementer for the variable value.
java.lang.String	getIncrementerFactoryClassName() Returns the string name of the variable value class.
JRGroup	getIncrementGroup() Returns the group whose break triggers the variable increment.
byte	getIncrementType() Returns the variable increment type.
JRExpression	getInitialValueExpression() Returns the initial value expression for this variable.
java.lang.String	getName() Returns the name of the variable.
JRGroup	getResetGroup() Returns the group whose break triggers the variable reset.
byte	getResetType() Returns the variable reset type.
java.lang.Class	getValueClass() Returns the class of the variable value.
java.lang.String	getValueClassName() Returns the string name of the variable value class.
boolean	isSystemDefined() Returns true if the variable calculation type is system defined.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

name

protected java.lang.String name

valueClassName

protected java.lang.String valueClassName

valueClassRealName

protected java.lang.String valueClassRealName

incrementerFactoryClassName

protected java.lang.String incrementerFactoryClassName

incrementerFactoryClassRealName

protected java.lang.String incrementerFactoryClassRealName

resetType

protected byte resetType

incrementType

protected byte incrementType

calculation

protected byte calculation

isSystemDefined

protected boolean isSystemDefined

valueClass

protected transient java.lang.Class valueClass

incrementerFactoryClass

protected transient java.lang.Class incrementerFactoryClass

expression

protected JRExpression expression

initialValueExpression

protected JRExpression initialValueExpression

resetGroup

protected JRGroup resetGroup

incrementGroup

protected JRGroup incrementGroup

Constructor Detail

JRBaseVariable

protected JRBaseVariable()

JRBaseVariable

protected JRBaseVariable(JRVariable variable,
                         JRBaseObjectFactory factory)

Method Detail

getName

public java.lang.String getName()

Description copied from interface: JRVariable

Returns the name of the variable. Since all variables are stored in a map, the variable names are the keys in the map.

Specified by:

getName in interface JRVariable

Returns:

a string containing the variable name

getValueClass

public java.lang.Class getValueClass()

Description copied from interface: JRVariable

Returns the class of the variable value. Any class is allowed as long as it is in the classpath at compile and run time.

Specified by:

getValueClass in interface JRVariable

Returns:

a Class instance representing the variable value class

getValueClassName

public java.lang.String getValueClassName()

Description copied from interface: JRVariable

Returns the string name of the variable value class.

Specified by:

getValueClassName in interface JRVariable

getIncrementerFactoryClass

public java.lang.Class getIncrementerFactoryClass()

Description copied from interface: JRVariable

Returns the class of the incrementer factory used for choosing the right incrementer for the variable value.

Specified by:

getIncrementerFactoryClass in interface JRVariable

Returns:

the Class instance of the incrementer factory

See Also:

JRIncrementer, JRIncrementerFactory

getIncrementerFactoryClassName

public java.lang.String getIncrementerFactoryClassName()

Description copied from interface: JRVariable

Returns the string name of the variable value class.

Specified by:

getIncrementerFactoryClassName in interface JRVariable

getResetType

public byte getResetType()

Description copied from interface: JRVariable

Returns the variable reset type. This value must be one of the reset type constants declared in this class.

Specified by:

getResetType in interface JRVariable

getIncrementType

public byte getIncrementType()

Description copied from interface: JRVariable

Returns the variable increment type. This value must be one of the reset type constants declared in this class, since the increment type uses the same constants as the reset type.

Specified by:

getIncrementType in interface JRVariable

getCalculation

public byte getCalculation()

Description copied from interface: JRVariable

Returns the variable calculation type. This value must be one of the calculation constants declared in this class.

Specified by:

getCalculation in interface JRVariable

isSystemDefined

public boolean isSystemDefined()

Description copied from interface: JRVariable

Returns true if the variable calculation type is system defined.

Specified by:

isSystemDefined in interface JRVariable

See Also:

JRVariable.CALCULATION_SYSTEM

getExpression

public JRExpression getExpression()

Description copied from interface: JRVariable

Returns the main expression for this variable. The expression must be numeric for certain calculation types.

Specified by:

getExpression in interface JRVariable

Returns:

a JRExpression instance containing the expression.

getInitialValueExpression

public JRExpression getInitialValueExpression()

Description copied from interface: JRVariable

Returns the initial value expression for this variable. The expression must be numeric for certain calculation types.

Specified by:

getInitialValueExpression in interface JRVariable

Returns:

a JRExpression instance containing the initial expression.

getResetGroup

public JRGroup getResetGroup()

Description copied from interface: JRVariable

Returns the group whose break triggers the variable reset. Only used when JRVariable.getResetType() returns JRVariable.RESET_TYPE_GROUP.

Specified by:

getResetGroup in interface JRVariable

getIncrementGroup

public JRGroup getIncrementGroup()

Description copied from interface: JRVariable

Returns the group whose break triggers the variable increment. Only used when JRVariable.getIncrementType() returns JRVariable.RESET_TYPE_GROUP.

Specified by:

getIncrementGroup in interface JRVariable

clone

public java.lang.Object clone()

Specified by:

clone in interface JRCloneable

Overrides:

clone in class java.lang.Object