Example usage for java.sql ParameterMetaData parameterModeIn

Introduction

In this page you can find the example usage for java.sql ParameterMetaData parameterModeIn.

Prototype

int parameterModeIn

To view the source code for java.sql ParameterMetaData parameterModeIn.

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Document

The constant indicating that the parameter's mode is IN.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int,name varchar);");
    st.executeUpdate("create view surveyView as (select * from survey);");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    PreparedStatement pstmt = null;
    ParameterMetaData paramMetaData = null;
    String query = "select * from survey where id > ? and name = ?";
    pstmt = conn.prepareStatement(query);
    paramMetaData = pstmt.getParameterMetaData();
    if (paramMetaData == null) {
        System.out.println("db vendor does NOT support ParameterMetaData");
    } else {//from  w ww  .  ja v  a2  s  .  co  m
        System.out.println("db vendor supports ParameterMetaData");
        // find out the number of dynamic parameters
        int paramCount = paramMetaData.getParameterCount();
        System.out.println("paramCount=" + paramCount);
        System.out.println("-------------------");
        for (int param = 1; param <= paramCount; param++) {
            System.out.println("param number=" + param);
            int paramMode = paramMetaData.getParameterMode(param);
            System.out.println("param mode=" + paramMode);
            if (paramMode == ParameterMetaData.parameterModeOut) {
                System.out.println("the parameter's mode is OUT.");
            } else if (paramMode == ParameterMetaData.parameterModeIn) {
                System.out.println("the parameter's mode is IN.");
            } else if (paramMode == ParameterMetaData.parameterModeInOut) {
                System.out.println("the parameter's mode is INOUT.");
            } else {
                System.out.println("the mode of a parameter is unknown.");
            }
        }
    }

    pstmt.close();
    conn.close();

}

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From source file:com.alibaba.wasp.jdbc.TestPreparedStatement.java

public void testParameterMetaData() throws SQLException {
    PreparedStatement prep = conn.prepareStatement("SELECT ?, ?, ? FROM DUAL");
    ParameterMetaData pm = prep.getParameterMetaData();
    assertEquals("java.lang.String", pm.getParameterClassName(1));
    assertEquals("VARCHAR", pm.getParameterTypeName(1));
    assertEquals(3, pm.getParameterCount());
    assertEquals(ParameterMetaData.parameterModeIn, pm.getParameterMode(1));
    assertEquals(Types.VARCHAR, pm.getParameterType(1));
    assertEquals(0, pm.getPrecision(1));
    assertEquals(0, pm.getScale(1));//from   ww w . ja v  a2  s  .c  om
    assertEquals(ResultSetMetaData.columnNullableUnknown, pm.isNullable(1));
    assertEquals(pm.isSigned(1), true);
    assertThrows(SQLErrorCode.INVALID_VALUE_2, pm).getPrecision(0);
    assertThrows(SQLErrorCode.INVALID_VALUE_2, pm).getPrecision(4);
    prep.close();
    assertThrows(SQLErrorCode.OBJECT_CLOSED, pm).getPrecision(1);

    Statement stat = conn.createStatement();
    stat.execute("CREATE TABLE TEST3(ID INT, NAME VARCHAR(255), DATA DECIMAL(10,2))");
    PreparedStatement prep1 = conn.prepareStatement("UPDATE TEST3 SET ID=?, NAME=?, DATA=?");
    PreparedStatement prep2 = conn.prepareStatement("INSERT INTO TEST3 VALUES(?, ?, ?)");
    checkParameter(prep1, 1, "java.lang.Integer", 4, "INTEGER", 10, 0);
    checkParameter(prep1, 2, "java.lang.String", 12, "VARCHAR", 255, 0);
    checkParameter(prep1, 3, "java.math.BigDecimal", 3, "DECIMAL", 10, 2);
    checkParameter(prep2, 1, "java.lang.Integer", 4, "INTEGER", 10, 0);
    checkParameter(prep2, 2, "java.lang.String", 12, "VARCHAR", 255, 0);
    checkParameter(prep2, 3, "java.math.BigDecimal", 3, "DECIMAL", 10, 2);
    PreparedStatement prep3 = conn
            .prepareStatement("SELECT * FROM TEST3 WHERE ID=? AND NAME LIKE ? AND ?>DATA");
    checkParameter(prep3, 1, "java.lang.Integer", 4, "INTEGER", 10, 0);
    checkParameter(prep3, 2, "java.lang.String", 12, "VARCHAR", 0, 0);
    checkParameter(prep3, 3, "java.math.BigDecimal", 3, "DECIMAL", 10, 2);
    stat.execute("DROP TABLE TEST3");
}

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From source file:org.eclipse.birt.report.data.oda.jdbc.ui.util.Utility.java

/**
 * give the stored procedure's column type name from the type.
 * @param type//from  w w w  . j a v  a 2 s .c o m
 * @return
 */
public static String toModeType(int type) {
    switch (type) {
    case ParameterMetaData.parameterModeUnknown:
        return "Unknown";
    case ParameterMetaData.parameterModeIn:
        return "Input";
    case ParameterMetaData.parameterModeInOut:
        return "Input/Output";
    case ParameterMetaData.parameterModeOut:
        return "Output";
    case 5:
        return "Return Value";
    default:
        return "Unknown";
    }
}

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