recreated "old" javadocs (without improving it)

Author: wumpz

src/main/java/net/sf/jsqlparser/expression/AnalyticExpression.java

@@ -15,6 +15,14 @@
 import java.util.List;
 import net.sf.jsqlparser.expression.operators.relational.ExpressionList;
 
+/**
+ * Analytic function. The name of the function is variable but the parameters following the special
+ * analytic function path. e.g. row_number() over (order by test). Additional there can be an
+ * expression for an analytical aggregate like sum(col) or the "all collumns" wildcard like
+ * count(*).
+ *
+ * @author tw
+ */
 public class AnalyticExpression extends ASTNodeAccessImpl implements Expression {
 
     private final OrderByClause orderBy = new OrderByClause();

src/main/java/net/sf/jsqlparser/expression/AnyComparisonExpression.java

@@ -12,6 +12,11 @@
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 import net.sf.jsqlparser.statement.select.SubSelect;
 
+/**
+ * Combines ANY and SOME expressions.
+ *
+ * @author toben
+ */
 public class AnyComparisonExpression extends ASTNodeAccessImpl implements Expression {
 
     private final SubSelect subSelect;

src/main/java/net/sf/jsqlparser/expression/BinaryExpression.java

@@ -11,6 +11,10 @@
 
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 
+/**
+ * A basic class for binary expressions, that is expressions having a left member and a right member
+ * which are in turn expressions.
+ */
 public abstract class BinaryExpression extends ASTNodeAccessImpl implements Expression {
 
     private Expression leftExpression;

src/main/java/net/sf/jsqlparser/expression/CaseExpression.java

@@ -14,6 +14,30 @@
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 import net.sf.jsqlparser.statement.select.PlainSelect;
 
+/**
+ * CASE/WHEN expression.
+ *
+ * Syntax:  <code><pre>
+ * CASE
+ * WHEN condition THEN expression
+ * [WHEN condition THEN expression]...
+ * [ELSE expression]
+ * END
+ * </pre></code>
+ *
+ * <br/>
+ * or <br/>
+ * <br/>
+ *
+ * <code><pre>
+ * CASE expression
+ * WHEN condition THEN expression
+ * [WHEN condition THEN expression]...
+ * [ELSE expression]
+ * END
+ * </pre></code>
+ *
+ */
 public class CaseExpression extends ASTNodeAccessImpl implements Expression {
 
     private Expression switchExpression;

src/main/java/net/sf/jsqlparser/expression/DateValue.java

@@ -13,6 +13,9 @@
 
 import java.sql.Date;
 
+/**
+ * A Date in the form {d 'yyyy-mm-dd'}
+ */
 public class DateValue extends ASTNodeAccessImpl implements Expression {
 
     private Date value;

src/main/java/net/sf/jsqlparser/expression/DoubleValue.java

@@ -11,6 +11,9 @@
 
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 
+/**
+ * Every number with a point or a exponential format is a DoubleValue
+ */
 public class DoubleValue extends ASTNodeAccessImpl implements Expression {
 
     private double value;

src/main/java/net/sf/jsqlparser/expression/ExtractExpression.java

@@ -11,6 +11,12 @@
 
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 
+/**
+ * Extract value from date/time expression. The name stores the part - name to get from the
+ * following date/time expression.
+ *
+ * @author tw
+ */
 public class ExtractExpression extends ASTNodeAccessImpl implements Expression {
 
     private String name;

src/main/java/net/sf/jsqlparser/expression/Function.java

@@ -13,6 +13,9 @@
 import net.sf.jsqlparser.expression.operators.relational.NamedExpressionList;
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 
+/**
+ * A function as MAX,COUNT...
+ */
 public class Function extends ASTNodeAccessImpl implements Expression {
 
     private String name;

src/main/java/net/sf/jsqlparser/expression/JdbcParameter.java

@@ -11,6 +11,9 @@
 
 import net.sf.jsqlparser.parser.ASTNodeAccessImpl;
 
+/**
+ * A '?' in a statement or a ?<number> e.g. ?4
+ */
 public class JdbcParameter extends ASTNodeAccessImpl implements Expression {
 
     private Integer index;

src/main/java/net/sf/jsqlparser/expression/LongValue.java

@@ -13,6 +13,9 @@
 
 import java.math.BigInteger;
 
+/**
+ * Every number without a point or an exponential format is a LongValue.
+ */
 public class LongValue extends ASTNodeAccessImpl implements Expression {
 
     private String stringValue;