Added the table field class

src/main/java/de/gnmyt/SQLToolkit/types/TableField.java

@@ -0,0 +1,189 @@
+package de.gnmyt.SQLToolkit.types;
+
+public class TableField {
+
+    private String name;
+    private String type;
+    private int length;
+    private boolean allowNull;
+    private String defaultValue;
+    private String[] extra;
+
+    /**
+     * Basic constructor of the {@link TableField}
+     * @param name The name of the field
+     * @param type The type of the field
+     * @param length The length of the field
+     * @param allowNull <code>true</code> if you want to allow a <b>NULL</b> in the field, otherwise <code>false</code>
+     * @param defaultValue The default value of the field
+     */
+    public TableField(String name, String type, int length, boolean allowNull, String defaultValue) {
+        this.name = name;
+        this.type = type;
+        this.length = length;
+        this.allowNull = allowNull;
+        this.defaultValue = defaultValue;
+    }
+
+    /**
+     * Simple constructor of the {@link TableField}
+     * @param name The name of the field
+     */
+    public TableField(String name) {
+        this.name = name;
+    }
+
+    /**
+     * Simple constructor with no prefilled variables
+     */
+    public TableField() {
+
+    }
+
+    /**
+     * Gets the name of the field
+     * @return the name of the field
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Gets the type of the field
+     * @return the type of the field
+     */
+    public String getType() {
+        return type;
+    }
+
+    /**
+     * Gets the length of the field
+     * @return the length of the field
+     */
+    public int getLength() {
+        return length != 0 ? length : 255;
+    }
+
+    /**
+     * Gets the extra of the field
+     * @return the extra of the field
+     */
+    public String[] getExtra() {
+        return extra;
+    }
+
+    /**
+     * Gets the extras of the field as a string
+     * @return the extras of the field as a string
+     */
+    public String getExtras() {
+        StringBuilder extras = new StringBuilder();
+        for (int i=0; i < getExtra().length; i++)
+            extras.append(getExtra()[i]);
+        return extras.toString();
+    }
+
+    /**
+     * Gets the allowNull variable as sql string
+     * @return the allowNull variable as sql string
+     */
+    public String getNullAsSQL() {
+        return !isAllowNull() ? "NOT NULL" : "";
+    }
+
+    /**
+     * Gets the default value of the field
+     * @return the default value of the field
+     */
+    public String getDefaultValue() {
+        return !defaultValue.isEmpty() ? "DEFAULT '" + defaultValue + "'" : "";
+    }
+
+    /**
+     * Checks if the field is allowed to have a <b>NULL</b>
+     * @return <code>true</code> if the field is <b>NULL</b>, otherwise <code>false</code>
+     */
+    public boolean isAllowNull() {
+        return allowNull;
+    }
+
+    /**
+     * Sets the name of the field
+     * @param name The new name of the field
+     * @return this class
+     */
+    public TableField setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Sets the type of the field
+     * @param type The new type of the field
+     * @return this class
+     */
+    public TableField setType(String type) {
+        this.type = type;
+        return this;
+    }
+
+    /**
+     * Sets the type of the field (with a sql type)
+     * @param type The new type of the field
+     * @return this class
+     */
+    public TableField setType(SQLType type) {
+        this.type = type.getValue();
+        return this;
+    }
+
+    /**
+     * Sets the length of the field
+     * @param length The new length of the field
+     * @return this class
+     */
+    public TableField setLength(int length) {
+        this.length = length;
+        return this;
+    }
+
+    /**
+     * Sets the allowNull variable of the field
+     * @param allowNull <code>true</code> if you want to allow a <b>NULL</b> in the field, otherwise <code>false</code>
+     * @return this class
+     */
+    public TableField setAllowNull(boolean allowNull) {
+        this.allowNull = allowNull;
+        return this;
+    }
+
+    /**
+     * Sets the default value of the field
+     * @param defaultValue The new default value of the field
+     * @return this class
+     */
+    public TableField setDefaultValue(String defaultValue) {
+        this.defaultValue = defaultValue;
+        return this;
+    }
+
+    /**
+     * Sets the extras of the field
+     * @param extra The new extras of the field
+     * @return this class
+     */
+    public TableField setExtra(String[] extra) {
+        this.extra = extra;
+        return this;
+    }
+
+    /**
+     * Gets the generated sql row
+     * @return the generated sql row
+     */
+    public String generateSQLRow() {
+        return String.format("`%s` %s(%d) %s %s %s", getName(), getType(), getLength(), getNullAsSQL(), getDefaultValue(), getExtras());
+    }
+
+
+}