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Java Source Code / Java Documentation » Testing » PolePosition 0.20 » com.versant.core.jdbc.sql.exp

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Class Diagram

Java Document (Java Doc)

java.lang .Object

com.versant.core.jdbc.sql.exp .SqlParamUsage

SqlParamUsage
public class SqlParamUsage (Code)
	This tracks usage of this parameter in an SqlExp tree. A parameter may be used several times in the same tree if it is used more than once in the original filter expression. This will be null if the param is not used. A parameter may also have to be split into more than one SqlExp if it is compared to a field with multiple columns. The first expression is expList. The expcount field specifies how far down the list to go as expList may be part of a larger list. See Also: com.versant.core.jdo.query.ParamNode.usageList

Field Summary
public int	classIndex The class index of the class for this parameter (-1 if unknown). This is used for OID parameters compared to columns that are not associated with a field e.g.
public JdbcColumn	col
public int	expCount The number of expressions in expList for this usage of the parameter.
public SqlExp	expList The first expression for this usage of the parameter.
public int	javaTypeCode The java type code of this usage of the parameter.
public JdbcField	jdbcField The field for this parameter or null if it is not being compared to a field.
public int	jdbcType The JDBC type of this usage of the parameter.
public int	mod How must the parameter value be modified before being set? This is used for startsWith and endsWith for databases that do not allow expressions on the right hand side of a LIKE (e.g.
public SqlParamUsage	next The next usage in the list.

Method Summary
public SqlParamUsage	getClone(Map cloneMap)

Field Detail

classIndex
public int classIndex(Code)
	The class index of the class for this parameter (-1 if unknown). This is used for OID parameters compared to columns that are not associated with a field e.g. in a link table.

col
public JdbcColumn col(Code)

expCount
public int expCount(Code)
	The number of expressions in expList for this usage of the parameter. If a param is used with a field split over multiple columns then this will be more than 1. This will be zero if the parameter never has to be converted into a 'is null' or 'is not null' expression.

expList
public SqlExp expList(Code)
	The first expression for this usage of the parameter. This is the parent of the first ParamExp instance for this usage.

javaTypeCode
public int javaTypeCode(Code)
	The java type code of this usage of the parameter. This is not set if jdbcField is not null. See Also: SqlParamUsage.jdbcField

jdbcField
public JdbcField jdbcField(Code)
	The field for this parameter or null if it is not being compared to a field. See Also: SqlParamUsage.javaTypeCode See Also: SqlParamUsage.jdbcType

jdbcType
public int jdbcType(Code)
	The JDBC type of this usage of the parameter. This is not set if jdbcField is not null. See Also: java.sql.Types See Also: SqlParamUsage.jdbcField

mod
public int mod(Code)
	How must the parameter value be modified before being set? This is used for startsWith and endsWith for databases that do not allow expressions on the right hand side of a LIKE (e.g. Informix). See Also: com.versant.core.jdbc.query.SqlStruct.Param.MOD_APPEND_PERCENT

next
public SqlParamUsage next(Code)
	The next usage in the list.

Method Detail

getClone
public SqlParamUsage getClone(Map cloneMap)(Code)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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