Class JDOMetaDataProperties
- java.lang.Object
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- com.sun.jdo.api.persistence.enhancer.meta.JDOMetaDataProperties
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public final class JDOMetaDataProperties extends Object
This class parses properties containing meta data information about classes. The syntax of the properties is the following:- the keys in the properties file are fully qualified classnames or fully qualified fieldnames
- a fields is separated by a classname with a hash mark ('#') (e.g. "test.Test#test1")
- all classnames are given in a natural form (e.g. "java.lang.Integer", "java.lang.Integer[][]", "int", "test.Test$Test1")
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property keys are classnames and fieldnames
(e.g. "test.Test=...", "test.Test#field1=...")
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Classnames can have the following attributes:
- jdo:{persistent|transactional}
- super: <classname>
- access: {public|protected|package|private}
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Fieldnames can have the following attributes:
- type:<type>
- access: {public|protected|package|private}
- jdo:{persistent|transactional|transient}
- annotation:{pk|dfg|mediated}
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the names of the attributes can be ommitted: you can say
test.Test1#field1=jdo:persistent,type:java.lang.String,pk,...
or
test.Test1#field1=persistent,java.lang.String,pk,...
or
test.Test1#field1=jdo:persistent,java.lang.String,pk,...
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in order to find fields of a class, a line for the class has to be
specified in the properties: To find the field
test.Test1#field
, the keystest.Test1
andtest.Test1#Field
have to be present.
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Constructor Summary
Constructors Constructor Description JDOMetaDataProperties(Properties props)
Creates a new object with the given properties.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description com.sun.jdo.api.persistence.enhancer.meta.JDOMetaDataProperties.JDOClass
getJDOClass(String classname)
Get the information about the class with the given name.com.sun.jdo.api.persistence.enhancer.meta.JDOMetaDataProperties.JDOField
getJDOField(String fieldname, String classname)
Gets the information about the specified field.String[]
getKnownClassNames()
Gets all classnames in the properties.
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Constructor Detail
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JDOMetaDataProperties
public JDOMetaDataProperties(Properties props)
Creates a new object with the given properties.- Parameters:
props
- The properties.- See Also:
properties
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Method Detail
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getJDOClass
public final com.sun.jdo.api.persistence.enhancer.meta.JDOMetaDataProperties.JDOClass getJDOClass(String classname) throws JDOMetaDataUserException
Get the information about the class with the given name.- Parameters:
classname
- The classname.- Returns:
- The information about the class or
null
if no information is given. - Throws:
JDOMetaDataUserException
- If something went wrong parsing the properties.
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getJDOField
public final com.sun.jdo.api.persistence.enhancer.meta.JDOMetaDataProperties.JDOField getJDOField(String fieldname, String classname) throws JDOMetaDataUserException
Gets the information about the specified field.- Parameters:
classname
- The name of the class.fieldname
- The name of the field of the class.- Returns:
- The information about the field or
null
if no information could be found. - Throws:
JDOMetaDataUserException
- If something went wrong parsing the properties.
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getKnownClassNames
public final String[] getKnownClassNames()
Gets all classnames in the properties.- Returns:
- All classnames in the properties.
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